Practice Test


1) The portion of the sperm known as its power house is the:


2) The immediate predecessors of spermatids are the:


3) The process of differentiation of spermatid into a spermatozoa is known as:


4) The spermatogenesis is a sequence of events. Give the correct order:


5) Primary spermatocyte produces 4 spermatozoa, but primary oocyte produces:


6) Ovulation takes place:


7) The most important ingredient of contraceptive pills is:


8) Fimbriated funnel is:


9) How many secondary spermatocytes will form 400 spermatozoa?


10) Seminiferous tubules are found in:


11) Oogenesis comprises:


12) In the fertile human female, approximately on which day of the menstrual cycle does ovulation take place?


13) If pregnancy does not occur, then corpus luteum:


14) The menstrual cycle in normal adult woman is of:


15) Contraceptive oral pills help in birth control by:


16) Repair of endometrium is undertaken by:


17) "Spermiogenesis" refers to:


18) How many eggs will be formed from 100 primary oocytes?


19) Atretic follicles are found in the:


20) Eunuchoidism is due to the failure of production of:


21) Corpus luteum is found in:


22) The hormone responsible for secondary sexual characters in female is:


23) Supporting cells found in between the germinal epithelium of testes are called:


24) Spermatozoa mature in:


25) Correct sequence of hormone secretion from beginning of menstruation is:


26) Graafian follicle contains:


27) Mullerian duct is:


28) Number of eggs released in the life time of a woman is approximately:


29) A human female reaches menopause around the age of:


30) Grey cresent is present in:


31) Glands secreting male sex hormone are:


32) Estrogen is secreted by:


33) Progesterone level falls during:


34) Cervix occurs in:


35) Which set is similar:


36) Temperature of the scrotum which is necessary for functioning of testis is always below body temperature. This difference is:


37) Bartholin glands are situated:


38) Manstrual cycle is affected by:


39) Preparation of sperm before entry into the ovum is called:


40) How many mature eggs are typically produced by each ovary of a non-pregnant woman each year?


41) Acrosome is found in the sperm at:


42) Oocyte is liberated from ovary under the influence of LH, after completing:


43) Which is correct about human embryonic development?


44) The number of chormosomes in a mature gamete gets halved during:


45) Frog's testes do not possess:


46) In oogamy, fertlization involves:


47) In human female, ovulation occurs during menstrual cycle:


48) Nebenkern is a part of:


49) Yellow coloured milk secreted by cattle soon after the birth of a calf is called:


50) Ovulation in the human female normally takes place during the menstrual cycle:


51) In which of the following organisms testes descend into scrotum in breeding season but in non-breeding season goes up?


52) Proliferation of endometrium of uterus is controlled by:


53) The type of placenta in shark is:


54) Which cell organelle is absent in human sperm?


55) The origin of kidney and ureter in Rana tigrina is:


56) Which of the following is 'immortal'?


57) Grey crecent is an area:


58) Wolffian duct forms:


59) A cross section at the mid point of middle piece of a human sperm will show:


60) Which one of the following events is correctly matched with the time period in a normal menstrual cycle?


61) If mammalian ovum fails to get fertilized, which one of the following is unlikely?


62) In which one of the following sets of animals do all the four give birth to young ones?


63) Both corpus luteum and macula lutea are:


64) Sertoli cells are regulated by the pituitary hormone known as:


65) Withdrawal of which of the following hormones is the immediate cause of menstruation?


66) In cloning of cattle a fertilized egg is taken out of the mother's womb and:


67) In the human female, menstruation can be deferred by the administration of:


68) In humans, at end of the first meiotic division, the male germ cells differentiates into the:


69) Which of the following statements is incorrect about menstruation:


70) Which of the following statements about human sperm is correct?


71) The signal for parturition originate from:


72) Sertoli cells are found in:


73) Which of the following is characteristic of the 27th day of the menstrual cycle?


74) In the male reproductive system:


75) The testes in human are situated outside the abdominal cavity inside a pouch called scroutm. The purpose served is for:


76) If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from:


77) The luteal (secretory) phase of the mentrual cycle is characterized by all of the following except:


78) The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy?


79) The second matruation division of the mammalian ovum occurs:


80) Which of the following statements about morula in humans is correct?


81) During the differentiation of a spermatozoan (spermiogenesis), the acrosome arises by accumulation of a material in:


82) What is the female counterpart of prostate gland of male (Man)?


83) Which is the cellular layer that disintegrates and regenerates again and again in humans:


84) Which one of the following "structure-secretory product" combinations is correct?


85) Seminal plasma in human males is rich in:


86) The abdominal passage which connects the abdominal cavity with scrotal sac in mammals is known as:


87) Vagina is lubricated by the secretion from:


88) Given below is a statement with some blanks. Fill up the blanks correctly -
The male reproductive system consists of two testes. Each testis contains thin folded tubes called the __(A)__ which meiosis take place to produce the male gametes, the sperms. These sperms move to the __(B)__ ( a highly coiled tube formed from the merging of the seminiferous tubules), and then to the __(C)__ or sperm duct. The vasa deferentia merge to form the urethra, which travels to the outside of the body through the penis.The cells located vasa deferentia merge to form the urethra, which travels to the outside of the body through the penis. The cells located between the seminiferous tubules are called __(D)__ cells and they are responsible for the formation of the male hormone, __(E)__.


89) Fill up the blanks.
A functional mammary gland is characteristic of all female __(A)__. The mammary glands are paired structures (breasts) that contain glandular tissue and variable amount of fat. The glandular tissue of each breast is divided into 15-20 mammary lobes containing clusters of cells called __(B)__. The cells of __(C)__ secrete milk, which is stored in the cavities (lumens) of alveoli. The alveoli open into mammary tubules. The tubules of each lobe join to form a __(D)__ duct. Several __(E)__ ducts join to form a wider mammary ampulla which is connected to __(F)__ duct through which milk is sucked out.


90) Fill up the blanks -
The female external genitalia include mons pubis, labia majora, labia minora, hymen and clitoris. __(A)__ is a cushion of fatty tissue covered by skin and pubic hair. The __(B)__ are fleshy folds of tissue, which extend down from the mons pubis and surround the vaginal opening. The __(C)__ are paired folds of tissue under the labia majora. The opening of the vagina is often covered partially by a membrane called __(D)__. The __(E)__ is a tiny finger-like structure which lies at the upper junction of the two labia minora above the urethral opening. The __(D)__ is often torn during the first coitus (intercourse). However,it can also be broken by a sudden fall or jolt, insertion of a vaginal tampon, active participation in some sports like horseback riding, cycling etc. In some women the __(D)__ persists even after coitus. In fact, the presence or absence of __(D)__ is not a reliable indicator of virginity or sexual experience.


91) Given below are ten statements (A to J), each with one blank. Select the option which correctly fill up the blanks in all statements -
A : Human reproduce __ (asexually/sexually)
B : Humans are __ .(ociparous/viviparous / ovoviviparous)
C : Fertilisation is __ in humans (external / internal)
D : Male and female gametes are __ (diploid / haploid)
E : Zygote is __ (diploid / haploid)
F : The process of release of ovum from a mature follicle is called __.
G : Ovulation is induced by a hormone called__.
H : The fusion of male and female gametes is called __.
I : Zygote divides to form __ which is implanted in uterus.
J : The structure which provides vascular connection between fetus and uterus is called __.


92) The following refers to ovum surrounded by few sperms. Identify A, B and C -


93) Which of the statements is correct ?


94) Fill up the blanks -
After one month of pregnancy, the embryo's __(A)__ is formed. By the end of the __(B)__ month of pregnancy, the foetus develops limbs and digits. By the end of __(C)__, most of the major organ systems are formed, for example, the limbs and external genital organs are well-developed. By the end of __(D)__, the body is covered with fine hair, eye-lids separate, and eyelashes are formed.


95) A human female has the maximum number of primary oocytes in her ovaries -


96) In a man there are how many male accessory glands ?


97) When both ovaries of woman are removed then which hormone is decreased in blood ?


98) Bulbourethral glands are situated -


99) Which of the following change occur during parturition ?


100) How many eggs are produced by a human female in reproductive age ?


101) Which part of the fallopian tube is closest to the ovary ?


102) Which of the following structure is included in the male sex accessory ducts ?


103) Which of the following is responsible for division of fertilised egg ?


104) Which one is primary sex organ ?


105) When released from ovary, human egg contains


106) In a mammalian sperm, spirally arranged mitochondria around the axial filament are present in the region of


107) Path of sperms from penis to the site of fertilization is :


108) Ovulation takes place by


109) Corpus luteum produces


110) Number of spermatozoan, a single primary spermatocyte produces in spermatogenesis, is


111) The process of releasing the ripe female gamete from the ovary is called


112) In which animal, the tests are abdominal during embryonic stages but migrate to scrotum just before birth where they remain throughout life


113) The structure formed after release of ova from graafian follicles and secretory in nature is


114) Clitoris in mammals is


115) Failure of descending testes into the scrotum is known as


116) Mark the odd one :


117) A gland associated with the male reproductive organs of mammals is


118) Abdominal passage which connects abdominal cavity with the scrotal sac in mammals is known as


119) The sertoli cells are located in


120) Foetal membranes provide


121) Embryonic urinary bladder is


122) Haemopoietic in embryo is


123) Sperms of mammals depend for movement on


124) During pregnancy one of the following is excreted


125) Extrusion of second polar body from egg nucleus occurs


126) The cavity of gastrula is called


127) Archenteron is the future


128) Morphogenesis starts with


129) In which of the following embryonic stages does the implantation take place ?


130) Termination of gastrulation is indicated by


131) Which of the following develops from endoderm ?


132) Gonads are derived from


133) In human beings


134) Human placenta is derived from


135) Placenta in human is


136) Parturition means


137) Why can't woman get pregnant again during pregnancy ?


138) Scrotum is associated with


139) An accessory genital gland is


140) Corpus spongiosum muscle is present in


141) Stroma is present in the T.S. of


142) The duct opening at the tip of the nipple is


143) Gametes are formed during


144) Blastocyst remains attached to


145) All tissues can be formed from


146) Kidney and genital organs are formed from


147) Which of the following events occurs at the same time that menstruation is beginning ?


148) Tunica albuginea covers


149) Leydig cells are found in


150) Below urinary bladder is situated


151) The connective tissue called tunica albuginea covers the


152) Fertilizing protein is found on


153) Estrogen and progesterone are secreted by


154) Which part of the male reproductive system is the place where sperm complete the maturation process ?


155) In which part of the female reproductive anatomy does a fetus develop ?


156) __ is the hormone responsible for the expression of secondary sex characteristics in human females.


157) Which of these is NOT a gland that contributes to the production of sperm ?


158) Which of these is the name for human embryonic development ?


159) ___ keeps the embryo attached to the wall of uterus.


160) At what point development does an embryo become a fetus ?


161) Which of the following events occurs within the uterine tubes ?


162) The fluid that provides energy for the sperm cells comes from the __.


163) In the menstrual cycle, on what day does the flow stage begin ?


164) Females stop releasing eggs and hormone secretions slow down during __.


165) When FSH reaches the testes, it causes the production of __.


166) ___is the process by which a baby is pushed out of the uterus and passes out of the mother's body.


167) The remains of the placenta and embryonic membranes that are expelled during birth are called the __.


168) The menstrual cycle begins during __.


169) Embryo at 16-celled stage is called


170) Sertoli cells are regulated by the pituitary hormone


171) Withdarawl of which hormone is the immediate cause of menstruation ?


172) Spermatids are changed into spermatozoa through


173) Notochord, skeletal system and demis of skin are derived from


174) At which stage of follicle maturation does ovulation occur, transforming the follicle into the corpus luteum ?


175) Which germinal layer develops first during embryonic development ?


176) Which of the following statements concerning menopause is correct ?


177) Signals for parturition originate from :


178) If mammalian ovum fails to get fertilized, which one of the following is unlikely ?


179) Which part of ovary in mammals acts as an endocrine gland after ovulation ?


180) In the human female, menstruation can be deferred by the administration of


181) In humans, at the end of the first meiotic division, the male germ cells differentiate into the


182) In human adult females oxytocin


183) Which one of the following is the correct matching of the events occurring during menstrual cycle ?


184) Fertilization in the female reproductive tract most often takes place in the


185) Seminal plasma in humans is rich in


186) Foetal ejection reflex in human female is induced by


187) The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is


188) Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female ?


189) A change in the amount of yolk and its distribution in the egg will affect


190) The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy ?


191) The second maturation division of the mammalian ovum occurs -


192) Human testes are positioned in an external sac rather than in the abdominal cavity


193) The following list gives some effects brought about directly by hormones.
(I) promotion of sperm production
(II) stimulation of oestrogen production
(III) development of corpus luteum
(IV) maturation of Graafian follicle
(V) stimulation of progesterone production
Which of these are ALL effected by FSH ?


194) During the last week of luteal phase of the menstrual cycle the following events occur.
1. A rapid drop in progesterone level takes place.
2.Menstruation begins.
3. Lack of LH leads to the degeneration of the corpus luteum.
4. The endometrium is no longer maintained.
The correct order in which these occur is


195) FSH was administered to a group of rats who had their anterior pituitary glands removed. Compared with the control group of normal rats, which of the following events did NOT take place in the experimental animals ?


196) Which of the following sequences shows the correct order of the events that occur during foetal development ?


197) The region of the embryo that first develops a close connection with the uterus is called the -


198) Which of the following does not occur during implantation ?


199) Which of the following events is correctly matched with the time period in a normal menstrual cycle ?


200) Correct sequence in development is -


201) Some important events in the human female reproductive cycle are given. Arrange the events in a proper sequence
A - Secretion of FSH
B - Growth of corpus luteum
C - Growth of the follicle and oogenesis
D - Ovulation
E - Sudden increase in the levels of LH


202) Correct sequence of hormone secretion from beginning of menstruation is -


203) Regarding fertilization which among the following statements is incorrect ?


204) Which among the following statement is correct to indicate the difference between sperm and egg


205) Menstruation is triggered by an abrupt decline in the amount of


206) What would happen if vasa deferentia of man were cut ?


207) In the human female, menstruation can be deferred by the administration of


208) The temperature of scrotal pouch remains normally at


209) During mid-cycle (menstruation cycle) :
A. LH and FSH attain a peak level
B. Ovulation occurs
C. Maximum progesterone level in blood
D. Regression of corpus luteum occurs


210) Menstruation cycle consists of :
A. Follicular / proliferative phase
B. Luteal / secretory phase
C. Menstrual / bleeding phase
D. Ejaculatory phase


211) During menstrual cycle there is morphological and physiological change in :
A. Uterus
B. Ovary
C. Penis
D. Labia majora


212) A sperm of human consists of :
A. Head
B. Neck
C. Middle piece
D. Tail


213) Secretion / secretions of which one / ones is / are essential for menstruation and motility of sperms.
A. Epididymis
B. Vas deferens
C. Seminal vesicle
D. Prostate glands


214) In humans the male accessory gland / glands include :
A. Seminal vesicle
B. Prostate
C. Testes
D. Bulbourethral


215) Each seminiferous tubule is lined on its inside by :
A. Male germ cells
B. Interstitial cells
C. Leydig cells
D. Sertoli cells


216) The female external genitalia include :
A. Mons pubis
B. Ovary
C. Labia majora and minora
D. Hymen and clitoris


217) A. Umbilical cord contain blood vessel from embryo
B. Umbilical cod joins the placenta and the embryo
C. Umbilical cord carries wastes and nutrients
D. It contains blood vessel from mother


218) Which of the cells are the ones that actually develop into the embryo ?
A. Trophoblast
B. Inner cell mass
C. Extra embryonic membrane
D. Endoderm


219) The sperm and the egg make different contributions to zygote. What statement / statements about their contributions is / are true ?
A. Sperm contribute most of the mitochondria
B. Egg contribute most of the cytoplasm
C. Both sperm and egg contribute haploid nucleus
D. Both sperm and egg contribute centrioles


220) A blastocyst :
A.Consists of trophoectoderm
B. Includes Archenteron
C. Inner cell mass
D. Includes blastocoel


221) Female accessory ducts are constituted by :
A. Oviducts
B. Uterus
C. Vagina
D. Ovary


222) Which one / ones pair is/are correct match ?
A. Solid ball - Morula
B. Hollow ball - Blastocyst
C. Child birth - Colostrum
D. Daughter cells - Blastomeres


223) Which one / ones is / are incorrect ?
A. The first menstrual discharge menarche
B. Meiosis is peculiar to gonads
C. Spermiation is the release of sperms from sertoli cells
D. Spermatogonium has 23 chromosomes in its nucleus.


224) The wall of Uterus has :
A. Ectoderm
B. Perimetrium
C. Myometrium
D. Endometrium


225) In ovary we can find :
A. Primary follicle
B. Graafian follicle
C. Blood vessel
D. Corpus luteum


226) Fallopian tube consists of :
A. Isthmus
B. Cervix
C. Ampulla
D. Infundibulum


227) A. During fertilization, a sperm comes in contact with the zona pellucida layer and induces the changes in the membrane that block the entry of additional sperm.
B. The milk produced during initial few days of lactation is called Colostrum having antibodies.
C. In human beings, menstrual cycle ceases around 50 years of age. It is called menopause.
D. After one month of pregnancy major organ system are formed.


228) Which match / Matches is / are correct ?
A. Urethra - single
B. Prostate gland - single
C. Seminal vesicle - single
D. Bulbourethral gland - paired


229) In human beings uterus is
A. single in number
B. also called womb
C. Like an inverted pear
D. Supported by ligaments


230) Which match / matches is / are incorrect.
A. Spermatogonium - 46 chromosomes
B. Spermatid - 46 chromosomes
C. Sperm - 23 chromosomes
D. Sec. spermatocyte - 23 chromosomes


231) No menstruation cycle occurs
A. Before puberty
B. After 50 years
C. During lactation
D. Between puberty & menopause


232) Immediately after implantation, the inner cell mass differentiate into :
A. Ectoderm
B. Mesoderm
C. Myometrium
D. Endoderm


233) The penis is :
A. Copulatory organ
B. External geneitalia
C. With glans penis, that is covered with fore skin
D. Composed of non-erectile tissue


234) A sectional view of mammary gland shows :
A. Nipple + Areola
B. Mammary lobe, alveolus and duct
C. Antibodies + Pectoralis major muscles + Ribs
D. Ampulla + Lactiferous duct


235) Out of the following which are the parts of reproductive system of a man ?
A. Urethra
B. Fallopian tube
C. Ejaculatory duct
D. Labia minora


236) Which can be seen in the transverse section of human testis ?
A. Germinal epithelium
B. Seminiferous tubule
C. Ova
D. Sertoli cells


237) Which organs of male human reproductive system help in transferring semen into vagina ?
A. Prostate gland
B. Scrotum
C. Urethra
D. Penis


238) Parts of the human female reproductive system are
A. Penis
B. Vagina
C. Uterus
D. Fallopian tube


239) Glands found associated with male reproductive system are
A. Cowper's gland
B. Prostate gland
C. Seminal vesicle
D. Sweat gland


240) Which of the following are primary sex organs ?
A. Scrotum
B. Vagina
C. Testes
D. Ovary


241) Hormones secreted by human placenta are
A. Human chorionic gonadotropin (hCG)
B. Human placental lactogen (hPL)
C. estrogen and progesterone
D. Relaxin


242) Found associated with woman's mammary gland
A. Nipple
B. Lactiferous duct
C. Uterus
D. Vulva


243) Found associated with woman's mammary gland
A. Nipple
B. Lactiferous duct
C. Uterus
D. Vulva


244) Structures which are seen in the T. S of a ovary are
A. Graafian follicles
B. Germinal epithelium
C. Sertoli cells
D. Stroma


245) Set of chromosomes present in primary spermatocyte of humanbeing is
A. diploid / 2N
B. 44 + XY
C. 22 + X
D. 22 + Y


246) Out of the following which are the parts of mature human sperm ?
A. Acrosome
B. Axoneme
C. Ampulla
D. Neck


247) The structures derived from mesoderm are
A. Kidney
B. Brain
C. Urinary bladder
D. heart


248) Relaxin is secreted by -


249) The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for


250) If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from


251) In a normal pregnant woman, the amount of total gonadotropin activity has accessed. The result expected was


252) Which is not the accessory duct in male reproductive system of human


253) What is true about menstruation in human


254) The release of semen into vagina is called


255) During embryonic development the heart beat begins at the end of


256) The fertilization in human occurs at the junction of


257) Milk secreted from the cells of alveoli of mammary lobes reaches nipple through lactiferous duct (L), mammary duct (M), Mammary tubule (T) and Mammary ampulla (A) in the following order


258) The release of sperms from Seminiferous tubules is called


259) Which of the following statement regarding human development is correct ?


260) Most of the organs/system in foetus are formed by the end of


261) FSH in males


262) Which is unpaired gland in male reproductive system of human


263) Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of :


264) In human female the blastocyst


265) Secretions from which one of the following are rich in fructose, calcium and some enzymes ?


266) About which day in a normal human menstrual cycle does rapid secretion of LH (Popularity called LH-surge) normally occurs


267) The secretory phase in the human menstrual cycle is also called :


268) Which one of the following statements is false in respect of viability of mammalian sperm ?


269) Menstrual flow occurs due to lack of


270) Which one of the following is not the function of placenta ? It


271) Which of the following is the set of secondary sex organs ?


272) Head of sperm contains


273) Zona pellucida firstly appears in


274) If a female can not produce labour pain during parturition, then what step should be taken by doctor ?


275) Which stage of follicle shows secondary oocyte stage inside the follicle?


276) Which of the following hormone is not involved in the parturition ?


277) Secondary peak level of estrogen in menstruation cycle occurs due to


278) First meiotic division of oocyte is completed in


279) Read the following statements (A-D):
A. 60% part of semen is formed by seminal vesicle
B. Dartos muscles are found in scrotum
C. FSH secreted by sertoli cells
D. Total length of epididymis is 6 mt. in human.
How many statement are correct ?


280) How many ova and sperms would be produced from 50 secondary oocytes and 50 secondary spermatocytes during Gametogenesis in human ?


281) Which of the following contributes in the formation of seminal plasma ?
A. Seminal vesicle
B. Sertoli cells
C. Prostate gland
D. Vasdeferens
E. Bulbourethral gland
F. Preputial gland


282) LH surge occurs during which phase of menstrual cycle ?


283) How many structures are related to female reproductive system ?
A. Fallopian tube
B. Seminal vesicle
C. Uterus
D. Vagina
E. Cervix
F. Bartholin gland
G. Cowper's gland
H. Epididymis
I. Mons veneris


284) The main function of mammalian corpus luteum is to produce :


285) Select the correct option describing gonadotropin activity in a normal pregnant female:


286) In human the oocyte is maintained in a state of meiotic arrest by secretion of


287) Which of the following hormones are secreted in large quantities during pregnancy in women ?


288) Human primary spermatocyte contains


289) Which of the following is not a placenta hormone ?


290) In 'Lactational amenorhea' there is no menstruation or ovulation due to higher level of


291) During ovulation, the ovary releases


292) Morula formed at the end of cleavage is ___ celled.


293) Which of the following cells during gametogenesis is normally diploid ?


294) Which of these is not an important component of initiation of parturition in humans ?


295) Hysterectomy is surgical removal of


296) Capacitation refers to changes in the


297) In human females, meiosis-II is not completed until


298) Which of the following layers in an antral follicle is acellular ?


299) Which of the following events is not associated with ovulation in human female ?


300) Ectopic pregnancies are referred to as


301) Which of the following hormone is necessary for ovulation and also help to make a temporary endocrine gland ?


302) What happens during fertilisation in human after many sperms reach close to the ovum ?


303) Which part of ovary in mammals acts as an endocrine gland after ovulation ?


304) Which of the following statements concerning menopause is correct ?


305) Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other ?


306) Fertilization in humans is practically feasible only if -


307) Select the incorrect statement :


308) Changes in GnRH pulse frequency in females is controlled by circulating levels of -


309) Identify the correct statement on 'inhibin' :


310) Which of the following depicts the correct pathway of transport of sperms ?


311) Several hormones like hCG, hPL, estrogen, progesterone are produced by :


312) Consider the following points regarding hysterectomy -
(I) If your ovaries are not removed, you will continue to have hormone changes like you did with your periods, but will not have bleeding.
(II) If your ovaries are removed, you will go through changes like menopause.
(III) It is the second most frequently performed operation for women, second only to Cesarean section.


313) In human, fertilization usually occurs at :


314) Which of the following is correct ?


315) Which cells of the ovary are involved in the synthesis of estrogen ?
(I) Theca interna cells
(II) Granulosa cells
(III) Interstitial cells
(IV) Theca externa cells


316) During pregnancy degeneration of corpus luteum is prevented by the hormone :


317) Cowper's glands are found in


318) Milk secreted from the cells of alveoli of mammary lobes reaches to the nipple by Lactiferous duct (L),
Mammary duct (M), mammary Tubule (T) and mammary Ampulla (A) in following order


319) In frog, gastrulation process involves


320) Name the most important hormone which causes the uterine contraction strongly


321) Correct sequence of hormone from beginning of menstrual cycle to the end is


322) Which of the following is incorrectly matched?


323) Capacitation takes place in


324) Grey crescent is the area


325) Both corpus luteum and macula lutea are


326) A cross section at the midpoint of the middle piece of a human sperm will show


327) Fertilization is


328) Cleavage is


329) How many phases (stages) are there in menstrual cycle?


330) Rapid secretion of LH in ovulation causes


331) The phase of menstrual cycle in humans that lasts for 7-8 days, is


332) Correct sequence in development is


333) Fertilization of ovum takes place in rabbit, man and other placental mammals in


334) Placenta acts as an


335) Extraembryonic membranes, chorion and amnion are formed by


336) Extraembryonic membranes are also called


337) Capacitation of sperm occurs in


338) Temporary storage of sperms takes place in


339) The immediate cause of induction of ovulation in female is the large plasma surge of


340) Which hormone level increases in the luteal phase?


341) Process of maturation and development of sperm is called


342) The collective term used for acrosomal chemicals is


343) Which of the following structures are derivatives of the endoderm?


344) Which is regarded as urinary bladder of embryo?


345) Each ovary is bout 2-4 cm in length connected to the …A… wall by …B… Each ovary is covered by a thin
epithelium which encloses the ovarian stroma. Stroma is divided into two zones …C… and …D…
Fill the suitable choices for A to D


346) The female structures that corresponds (homologous) to the scrotum of the male are


347) According to which theory, ageing is due to accumulation of harmful protein?


348) Vasa efferentia are the ductules leading from


349) Hormone injected by doctors to induce delivery is


350) Which one of the following is the most likely reason of not occurring regular menstruation cycle in
females?


351) Corpus luteum release


352) Which of the following embryonic-membrane structure is excretory in function?


353) I. Sperm cells the immediately when they are released from the body and are placed in a petri plate.
II. Semen contains chemicals that causes females smooth muscles to contract


354) Sertoli’s cells are found in


355) Ovum receives the sperm in the region of


356) hCS (Human Chorionic Somatomammotrophin) previously called


357) Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy
gave birth to children with


358) Which of the following is not correct for gasrtulation?


359) Release of semen by penis into vagina during copulation (coitus) is called


360) Temperature of human testis is


361) Follicular phase is also called


362) The vasa efferentia leave the testis and opens into the …A…, located along the …B… surface. Here A and B
refers to


363) Where do sperms get matured?


364) Sertoli cells are also called


365) Lobules contain cluster of cells called …A… which secretes …B… . Alveoli opens into mammary tubules,
which joins to form ….C…
A, B and C here, refers to


366) Female pronucleus is


367) Correct statement with reference to a test tube bay is


368) Ovum is


369) Sperm lysins contains


370) The seminal plasma along with the sperm is called


371) The superior portion of the uterus is


372) hCG (Human Chorionic Gonado trophin) and hPL (Human Placental Lactogen) are released


373) Process of delivery of the foetus is called


374) At which stage of the cell cycle, secondary oocyte gets arrested before pregnancy?


375) Lactation produces milk


376) Which one of the following statements with regard to embryonic development in humans is correct?


377) Which of the following hormones is not a secretory product of human placenta?


378) Hyaluroniadase acts on ground tissue of …A… cells. Corona penetrating enzyme dissolves the …B… and
zonalysin dissolve the ….C… . Here A, B and C refers to


379) The corpus luteum secretes progesterone which negatively feeds back and inhibits the release of


380) During embryonic development, endoskeleton and muscle develop from which germinal layer?


381) Eggs which have yolk in the centre surrounded by cytoplasm are called


382) Whether a child died after normal birth or died before birth can be confirmed by measuring


383) The movement of spermatozoa, from the epididymal duct and seminal fluid into the ejaculatory duct to
urethra is under the control of


384) Sertoli’s cell are regulated by the pituitary hormone known as


385) Inflammation of the seminiferous tubules could interfere with the ability to


386) The gestation period of elephant is about


387) Which one of the following systems is not mesodermal in origin?


388) Which part of a sperm enters into an ovum during fertilization?


389) Graafian follicle after releasing ovum is called


390) External genitalia of male are called


391) Enzyme present in sperm acrosome to dissolve egg membrane is


392) Luteal phase is also called


393) Spermatogenesis is influenced by


394) How many mature, functional follicles are produced by a female in a lifetime?


395) Neubenkern is a part to


396) Enlarged end of penis (called the glans penis) is covered by the skin called


397) Interstitial cells secrets


398) Most mammals have their testis sac called scrotal sac which is for


399) The main function of trophoectoderm in mammalian embryo is


400) The correct sequence of male reproductive structures of rabbit through which sperms pass out is
I. Rete testes
II. Vasa efferentia
III. Epididymis
IV. Vasa deferentia


401) Binary fission is a mode of


402) The part of fallopian tube closest to the ovary is


403) Human male ejaculates …A… to …B… million sperm. Atleast …C… should have normal shape and size and
…D… should show vigorous motility. Here A, B, C and D refers to


404) Acrosome secretes


405) Find out the spermatogonium and spermatozoa in above figure


406) Second meiotic division in ovum leads to the formation of


407) In implantation the blastocyst attached to the …… wall of uterus


408) Which of the following groups of cell in the male gonad, represent haploid cells?


409) Parturition is


410) Several mammary ducts joins to form a wider mammary ampulla, which is connected to


411) External opening of penis is called


412) Insemination is


413) Sertoli’s cells are found


414) The maximum growth rate occurs in


415) Organogenesis is the formation of


416) …A… is composed of endoderm inside and splanchonopleuric extraembryonic mesoderm outside. In
humans it is small and non-functional except for …B… to placenta. A and B in the statement refers to


417) In vitro fertilization is a technique that involves transfer of which one of the following into the fallopian
tube?


418) What happens during the follicular phase of menstrual cycle?


419) Adrenal gland is derived from


420) The males of honey bee are produced by


421) During pregnancy which one of the following is excreted?


422) Identical twins are


423) If for some, reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not
be transported form


424) Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?


425) Pouch in which is the testes are suspended outside the abdominal cavity, is


426) Hormone which causes the parturition is


427) Select the correct statement


428) Colostrum is important for newly born because


429) A pair of bulbourethral gland also called …A… gland present on the either side of …B… . It secrets …C…
fluid and …D… for lubricating the penis. Here A, B, C and D are


430) ZIFT is


431) Maturation of sperm before penetration is called


432) Attachment of blastocyst of uterine wall is called


433) In testis, the immature germ cells produce sperm by …A… at puberty …B… present on the inside wall of
seminiferous tubules multiply by …C… division and increase their number. Identify A, B and C from the
above statement


434) Ovaries are the …A… sex organs which produce ovum and several steroid hormone called …B… Here A
and B refers to


435) Ceasation of menstrual cycle at the age of 50 is called


436) Programmed cell death is scientifically termed as


437) During spermatogenesis, which stage is the first to contain haploid number of chromosomes?


438) Middle piece of sperm contains


439) Ejaculation is the …A… response. Erection is a …B… response. Here, A and B refers to


440) The polar body of human ovum is formed


441) Find out primary follicle and tertiary follicle in question number 114


442) With increasing age, secretion of which of the following reduces to almost half?


443) Soon after implantation, the inner cell mass differentiation into outer ….A…. and inner …B… occurs ….C….
soon appears between ectoderm and mesoderm. A, B and C in the above sentence are


444) Luteal phase last for how many days?


445) Saheli is a oral contraceptive containing


446) What stage of the menstrual cycle is characterized by the event labelled A in the figure of previous
question?


447) Cauda epididymis lead to


448) After implantation, finger-like projections on the trophoblast are called …A…. which are surrounded by
…B… and maternal blood.
Here A and B refers to


449) Ovulation takes place in menses between


450) Male’s testes are contained in the scrotal sacs because


451) Two major entities seen in human testis TS are


452) Oviducts are also called


453) Seminal plasma in human males in rich in


454) The egg of frog is


455) Which hormone level reaches peak during luteal phase of menstrual cycle?


456) Skin epidermis, tooth, enamel, lens and corner of outer ear, brain, spinal cord, skeletal muscles of human
head are derived from


457) Primary sex organ is males is


458) The signals for parturition originates from


459) Infertility could develop when the sperm cells display


460) Exact time of human gestation period is


461) Vitellogenesis occurs during the formation of


462) In mammals, corpus luteum is found in which organ?


463) Acrosome is the modified


464) The chemical substance released by activated spermatozoa that acts on the ground substances of the
follicle cells is known as


465) The haemoglobin of a human foetus


466) In human, cleavage/divisions are


467) There is no DNA in


468) Natural parthenogenesis is found in


469) Inner cell mass contains certain cells called ……, which have the potency to give rise to all the tissues and
organs. The suitable word for blank in the above sentence is


470) Which chemical event of fertilization involves the presence of hyaluronidase enzyme?


471) Leydig’s cells are concerned with


472) Tunica albugenia is the covering of


473) Which of the following cells present in the mammalian testis and nourishes the sperm?


474) Progesterone is needed for the maintenance


475) The target ICSH is


476) Sugar fructose is present in the secretion of


477) …A… are the certain agents that causes abnormal development in the developing embryo. The most well
known is …B… which causes phenomelia is foetus


478) The number of autosomes in human primary spermatocyte is


479) Seminal vesicles are present at the base of


480) The main function of fimbriae of Fallopian tube is


481) Saheli is a


482) The nutritive cells found in seminiferous tubules are


483) Identify the odd one


484) FSH is given to a rat which don’t have anterior lobe of pituitary. What will not happen in rat?


485) Ejaculatory duct contains


486) At what stage in test tube babies, the zygote is implanted in human female?


487) Notochord, skeletal system and dermis of the skin are the derivatives of


488) Chorionic villi are formed by the modification of


489) Male pronucleus is
I. Head of sperm
II. Neek of sperm
III. Middle piece of sperm
IV. Tail of sperm


490) Hormones plays a very significant role in puberty. …A… secreted by …B… stimulates …C… lobe of pituitary
to secrete …D… and …E… hormones. Testosterone brings developmental of secondary sex organs and
secondary characters.
A, B, C, D and E in the above statement are


491) Which cells come earliest in the sequence of sperm production?


492) Superficial meroblastic cleavage occurs in


493) Which of the following is viviparous?


494) The dominant hormone controlling the proliferative phase of the uterine endometrium is


495) Test tube baby means a baby born when


496) Fertilization takes place in


497) In teloecithal egg


498) Which hormone is produced throughout the menstrual cycle?


499) Accessory sexual character in female is promoted by


500) Uterine endometrium, epithelial glands and connective tissue are broken in menstrual phase. This is due
to


501) Which one of the following statements is incorrect about menstruation?


502) Ovulatory phase lasts for


503) In the beginning of menstruation what will happen?


504) Type of cell division taking place at I, II and III stages of previous question are


505) Fusion of dissimilar gametes is known as


506) At the time of birth, the oocyte have the stage


507) Vaginal orifice, urethral orifice are open in


508) The extra-embryonic membranes of mammalian embryo are derived from


509) Relaxin (a hormone) is secreted by


510) Leydig cells secretes …. hormone


511) Which of the following is correct about mammalian testes?


512) During oogenesis, the small structure separated from egg is


513) Structure connecting the foetus to placenta is


514) Sperm is a microscopic structure composed of head, neck, …A… and …B… Sperm head contains elongated haploid nucleus, which is covered by cap like structure called …C… .A, B and C in the above statement refers to


515) Which part of the sperm is motile?


516) Cytoplasm of ovum does not contain


517) A. Humans reproduces…..
B. Humans are…….
C. Fertilization is …. in humans
D. Male and female gametes are…..
E. Zygote is…..
F. The process of release of ovum from a mature follicle is called…..
G. Ovulation is induced by a hormone called……
H. The fusion of male and female gametes is called…….
I. Zygote divides to form… which is implanted in uterus
J. The structure which provides vascular connection between foetus and uterus is called……
Blanks in the statements A to J in the above statement is


518) Blastopore is found in


519) Seminal vesicle secretes 60% of semen content, these contents are


520) A sectional view of mammary gland shows
I. Nipple areola
II. Mammary lobes (alveolus) and duct
III. Antibody and ribs
IV. Ampulla and lactiferous duct
Choose the correct option from the above


521) The Bartholin glands of female resembles the male’s


522) Cleavage in frog’s zygote is


523) Post-embryonic period is also called


524) Spermatogenesis starts at puberty due to


525) Name the hormone, which stimulates growth and development of breast in preparation for lactation?


526) At which stage of the development, ovum is released from the ovary of human female?


527) The 60% of semen is produced by the


528) Spermatogenesis is induced by


529) Sertoli’s cells are nourishing cells in the testis. They also secrete a hormone. Identify the same


530) Through invagination of which of the following, mesoderm is formed?


531) The receptor site of acrosome are exposed and become active to penetrate the egg. This process is called


532) Primary oocyte surrounded by a layer of granulosa cells is called


533) In human secretion, which of the following is used to confirm implantation of emryo?


534) When both ovaries are removed from rat, which hormone is decreased in blood?


535) Study the following sentences.
I. Testosterone influences the male secondary sexual characters.
II. Gestation period in rabbit is approximately 276 days.
III. Bulbourethral glands secrete a vaginal lubricant.
IV. Placenta secretes oestrogen
Identify the correct statements.


536) Secretion from which of the following structures is preparing inner wall of uterus for implantation?


537) At the time of implantation, the human embryo is called


538) Vas deferentia receives a duct from …A… and opens into the …B… as ejaculatory duct.
A and B in above statement is


539) In numans, dermis of skin, circulatory system and muscles are derived from


540) …A… completely surrounds the embryo and protect it. It also take part in formation of ….B… .
A and B here refers to


541) Cu ions released from copper- releasing Intra Uterine Devices (IUDs)


542) Which one of the following is the most widely accepted method of contraception in India, at present?


543) Which of the following undergoes, the meiosis-I division?


544) A chemical fertilizin is produced from


545) Milk secretion is maintained by …A… . This hormone inhibits the release from the pituitary and counters
the …B… and …C… . Hence in nourishing mother, the menstrual cycle is suppressed. Here A, B and C are


546) Which one of the following events is correctly matched with the time period in a normal menstrual cycle?


547) A single ejaculation contains …A… to …B… million spermatozoa. Semen has pH of …C… to …D… . Its
alkalinity helps to neutralize the acidity of urethra. Here A, B, C and D refers to


548) Some important events in the human female reproductive cycle are given below. Arrange the events in
proper sequence.
I.Secretion of FSH
II.Growth of cropus luteum
III.Growth of the follicle and oogenesis
IV.Ovulation
V.Sudden increase in the levels of LH


549) Mammary gland is a


550) The tertiary follicle changes into


551) Male accessory glands includes …A…, …B… and …C… . Here A, B and C represents


552) GnRH stimulates two hormones from anterior lobe of pituitary


553) Female gamete mother cell are called


554) Why the fusion of sperm and ova do not occur during pregnancy?


555) 2n=16 is a primary spermatocyte, which is in metaphase of first meiotic division. What shall be the total
number of chromatids in each of the secondary spermatocyte?


556) Which of the following statement is correct?


557) …A… are the paired folds of tissue under the labia majora. The opening of vagina is covered partially by
…B… …C… is the finger-like projection, which lies at the upper junction of two labia minora and urethral
opening.
A, B and C in the above statements are


558) The seminiferous tubules of the testis opens into the vasa efferentia by


559) …A… is made up of trophoblastic mesoderm inside and somatopleuric extraembryonic mesoderm outside.
The space between embryo and the amnion is called …B… which is filled with clear watery fluid secreted
by both embryo and membrane. It protects the embryo from shock and desiccation. A and B in above
sentence are


560) Placenta secretes


561) Scrotum remains connected with abdomen or pelvic cavity by


562) Hormone responsible for ovulation is


563) Wall of each seminiferous tubules is formed of a single layer called


564) Reproduction in larval stage is called


565) The …A… secrete human chorionic gonadotropin hormone. The hCG maintains the …B… and stimulates it
to secrete …C… The latter maintains the …D… of the uterus and causes it to grow throughout pregnancy
This also prevents …E… Progesterone also cause increased secretion of mucous in the cervix of the uterus
that forms a protective plug during pregnancy
A to E in above paragraph, is


566) Human placenta is derived from


567) In which of the following animal, cleavage divisions are restricted to a small part of cytoplasm and nucleus
in animal pole of egg?


568) Fertilization is


569) Maturation of sperm before penetration is called


570) At menopause, there is rise in urinary excretion to


571) Identify E, F, G and H in the diagram of previous question


572) Mammary glands are modified


573) Primary sex organ in man is


574) In menstrual phase, the production of LH considerably


575) Cytoplasm surrounding mitochondria present in the middle piece of sperm is


576) During menstrual phase, the hormones which show reduction in sufficient quantity are


577) A woman with a typical 28 day menstrual cycle is most likely to become pregnant as a result of sexual
intercourse on ….. of cycle


578) What is the purpose of polar bodies during oogenesis?


579) Funnel-shaped part closer to the ovary is called


580) Which of the following represents a condition, where the motility of the sperms is highly reduced?


581) Male reproductive system contains a pair of …A… along with accessory …B… and …C… and an external
…D… . Here A, B, C, and D refers to


582) The wolffian duct gives rise of


583) Second meiotic division in ova takes place


584) Which of the given option maintains?
I. Endometrium wall
II. Pregnancy


585) Which of the following provides nutrition to sperm?


586) The leydig’s cells secrete


587) Germinal epithelium gives rise to


588) The cells of the trophoblast in contact with inner mass of cells, are called


589) The cell division that takes place in a zygote is known as


590) If the size of a fertilized egg of frog is compared with the size of its blastula and gastrula stages, which of
the following observations will be correct?


591) Bartholin glands are also called


592) Sperm acrosome is derived from


593) Chorionic villi and uterine tissue become interdigiated with each other and jointly form


594) Menstruation is due to sudden


595) Anti-fertilizin is present on


596) During early and middle fetal life, the testis are located in the


597) Human egg is


598) Cleavage forms 2-4-6-8-16 cells. These cells are called


599) In frog , chromosome number is reduced to half


600) Testicular lobules contains


601) Lowest regeneration power is found in


602) Which of the following is a mechanical barrier used in birth control?


603) Amphimixis is


604) Our all bones are derived from the mesoderm. Except


605) Layers of an ovum from outside to inside is


606) Onset of menstruation of human female is called


607) Ovulation takes place in a month between


608) The best definition of the process of gastrulation is that it is a process where the


609) A boy who has not passed through puberty sustains an injury to his anterior pituitary such that FSH is no
longer released, but LH secretion is normal. After he grows to maturity, one would expect that he would


610) Which of the following is not a case of epimorphosis?


611) Androgen stimulates the …A… FSH acts on the …B… and stimulates factors for spermiogenesis. Here A and
B refers to


612) Which of the following is the group of external genitalia in human female?


613) Cushion of fatty tissue covered by skin and pubic hair is called


614) A. The mature follicle is called Graafian follicle
B. The mature follicle is called secondary follicle


615) After one month of pregnancy, the embryo’s …A…. is formed. By the end of the …..B… month of pregnancy,
the foetus develops limbs and digits. By the end of …C… most of the major organ systems are formed for
example, the limbs and external genital organs are well-developed. By the end of …D….. the body is
covered with fine hair, eyelids separate, and eyelashes are formed
Here A and D refers to


616) Find out the correct statement.


617) Which is formed in gastrulation?


618) Everytime copulation do not lead to fertilization and pregnancy because of failure of sperm to reach the


619) 64 celled stage of embryo is called


620) Uterus is also called


621) Oral contraceptives are prescribed in females to check


622) Which of the correct example of the type of regeneration out of the two major types?


623) Trophoblast gives ….. to embryo


624) Fleshy folds of tissue which extends down the mons pubis and surrounds the vaginal opening is called


625) The embryo at 16-celled stage is known as


626) Non –participation of male pronucleus in fertilization is


627) Releasing of sperms from seminiferous tubules is called


628) The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The
purpose served is for


629) Which is present in male rabbit but not present in female rabbit?


630) The tertiary follicle changes into mature follicle called …A… The secondary oocyte form a new membrane
called …B… surrounding it. The Graafian follicle reptures to release the secondary oocyte ovum from the
ovary by the process called …C…
A, B and C in the above passage refers to


631) …… is composed of endoderm inside and splanchoropleuric extraembryonic mesoderm outside. This part
is non-functional except it is the site of early blood formation. The most suitable word for the blank space
is


632) The new membrane formed by follicular cells is called


633) Arrhenotoky is also called


634) Vasa deferentia together with seminal vesicle forms


635) Which one of the following cells have haploid number of chromosome?


636) Acrosome present at the tip of sperm is made up of


637) Gametogenesis is the formation of


638) Liver and pancreas are derivatives of


639) Which of the following is correct?


640) Corpus luteum secretes


641) Interstitial cells are also called


642) Why menstrual cycle do not takes place regulary?


643) Which of the following is a role of Sertoli cells in spermatogenesis?


644) Development of animal embryo from egg without fertilization is called


645) Cleavage is the rapid mitotic division. It occurs in


646) Which one of the following statements about human sperm is correct?


647) Which of them is not a correct match?


648) Origin of nervous system occurs from


649) The edges of infundibulum possess finger-like projection called …A… which helps in the collection of
ovum. The infundibulum leads to wider part of the oviduct called …B… . Last part of oviduct, …C…. has
narrow lumen and joins to uterus.
A, B and C in the above statement refers to


650) Bidder’s canal is found in


651) Baby moving vigorously, responds to the touch and lound noises, swallowing amniotic fluid and urinating
during …… of development


652) Mammalian egg has


653) If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously,
what will be the ratio of ova and sperm produced?


654) The granules present beneath the plasma membrane of oocyte cells are called …A… These granules fuses
with the plasma membrane of oocyte and releases their content including …B… between the …C… and
zona pellucida. This ensures the …D… . Here A, B, C and D refers to


655) What do you mean by the term spermateleosis?


656) Regeneration of tail in lizards is an example of


657) Which area experiences the greatest change during the menstrual cycle?


658) Which one of the following is the correct matching of the events occurring during menstrual cycle?


659) ‘XX’ is a thick structure of male reproductive system which arises from cauda epididymis. ‘XX’ are 2 in
number and its lining has many stereocilia. Identify ‘XX’


660) The largest component of the uterus by weight is the


661) Head region of the sperm contains


662) The embryonic membrane involved in the formation of placenta in human is


663) Hormone, which is responsible for contraction of uterus is


664) Labium majora of a female mammal is homologous to


665) Spermiogenesis or spermatiliosis is


666) Which extra-embryonic membrane in humans prevents desiccation of the embryo inside the uterus?


667) The type of connective tissue that is associated with the umbilical cord is


668) The uterus opens into the vagina by a canal called


669) Within the female ovary, primordial follicles start to develop


670) Binding of sperm to secondary oocyte cause …A… which ensures ….B… . The words suitable to fill the
blanks are


671) The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human
testis is


672) Mixing up of chromosome of male and female nucleus is called


673) Body covered with fine hair, eyelid separates and eye lashes are formed during ….. of development


674) Which of the following hormones does not play any role is menstruation?


675) Withdrawl of which hormone cause desintegration of corpus luteum?


676) Hormone …A… secretes by the anterior lobe of pituitary, which stimulates the ovarian follicle and follicle
secrets the …B… hormone. Here A and B refers to


677) Egg secrets a chemical called …A… which is made up of …B… and sperm secretes a chemical called …C…
made up of …D… The adhesion of sperm to the egg of same species through chemical recognition is called
…E… . Here A to E refers to


678) The clitoris in females is


679) Facial bones in humans are derived from


680) Regeneration of liver is


681) Embryologist can draw the fate maps of future organ of embryo in


682) Pseudocoelom developed from


683) In human beings, normally in which one of the following parts, does the sperm fertilize the ovum?


684) Function of bulbourethral gland is to


685) Fluid filled cavity called …A… is present in …B… follicle called …C…. Here A, B and C are


686) Spermatids are transformed into spermatozoa by


687) Length and width of testis is


688) Largest egg is of


689) The endometrium is the lining of


690) Acrosome is a type of


691) Which gland in female is a counterpart of Cowper’s gland in male?


692) Embryo at 8 to 16 cell stage is called


693) Neoteny refers to


694) Implantation is


695) Acrosome is a part of


696) Which part of the sperm contains hydrolytic enzymes?


697) Which of the following takes part in the formation of placenta?


698) Which one of the following statements about morula in humans is correct


699) Function of scrotum is to maintain the


700) Sperm enters from which part of egg?


701) Which of the following hormones is secreted by implanted blastocyst, that acts on the corpus luteum in
the ovary, stimulating the body to produce oestrogens and progesterone to maintain the uterine lining?


702) Which of the following organs is devoid of glands?


703) Which part of the sperm assist first mitotic division?


704) Sperm entry takes place in the secondary oocyte by


705) Sperm lysin is found in


706) Compartments in mammalian testes are called


707) Human Fallopian tube is about


708) Prostate gland surrounds the …A… . It produces milky, slightly alkaline solution which forms …B… volume
of the semen. The secretion contains …C… acid; enzymes (acid phosphates, amylase pepsinogen and prostaglandins).
A, B and C in the above statement is


709) In gastrulation, which of the forewing germ layer is /are formed?


710) The permissible use of the technique amniocentesis is for


711) Identify the correctly matched pairs of the germ layers and their derivatives.
I.Ectoderm – Epidermis
II.Endoderm – Dermis
III.Mesoderm – Muscles
IV.Mesoderm – Notochord
V.Endoderm – Enamel of teeth


712) Follicular phase lasts for


713) Fertilization of ovum by the sperm takes place in


714) The organ which produces gametes are called …A… and which neither produces gametes nor hormones
are called …B… . Here A and B represent


715) In males LH is called


716) Sertoli’s cells found in testis. These cells are


717) Mainly which type of hormones control the menstrual cycle in human beings?


718) Parturition is the process of


719) Placenta is a connection between


720) The hormone that prepares and maintains the uterus during pregnancy is secreted by


721) The early stage human embryo distinctly possesses


722) In human lining of gastrointestinal tract, lining of lungs, thymus thyroid, tonsils, kidney duct and bladder
are derived from


723) Which of these is used to control human population?


724) The first menstruration begins at puberty is called


725) An antrum is the characteristic of ….follicles


726) The blastomeres in the blastocyst are arranged into an outer layer called ……….. and an inner group of cells
attached to trophoblast called the …….. mass.
The trophoblast layer gets attached to the …… and the ……. differentiated as the embryo. As a result the
…….. becomes embeded in the endometrium of the uterus. This is called ….. and it leads to pregnancy.
Blanks given in the above paragraph are filled in chronological order as


727) Inner portion of the seminiferous tubules contain


728) The epididymis leads to …A… that ascends to abdomen and loops over the …B…. Here A and B refers to


729) Chorion is made up of


730) Endocrine portion of testis is


731) Genes in the somatic cells of the body undergoes mutation with the passages of time. Such mutations cause
senescence. It is related with


732) Identify I, J, K and L in the diagram of Q, 35


733) The first movements of the foetus and appearance of hair on its head are usually observed during which
month of pregnancy?


734) Which is immortal?


735) How many sperm cells are present in an average (3cc) ejaculation?


736) First milk produced after child birth is called


737) Sperm’s acrosome has


738) Ageing is retarded by


739) The colour of bone marrow in foetus is


740) In rabbit, head of epididymis present at the head of the testis is called


741) The main tissue present in breast is ……. tissue


742) Placenta faciliate


743) Which of the following undergoes spermiogenesis?


744) Cleavage found in mesolecithal egg is


745) In human, the unpaired male reproductive structure is


746) The main function of the fimbriae of the fallopian tube in females is to


747) Name the parts and organelles of the sperms which are important in zygotes first cleavage, after syngamy


748) The signals for parturition originates from the fully developed foetus and followed by placenta causing the
mild contractions called


749) Corpus luteum is developed from


750) Milk secretion in mammals is associated with


751) Which layer develops first during embryonic development?


752) The reproductive cycle in the female primate monkeys, apes and human beings is called


753) Which of the following are secretions produced by the spermatozoa at the time of fertilization?


754) Males have numbers of internal accessory organs. Which one (s) is/are responsible for secreting fluid
containing fructose and prostaglandins?


755) Which of the following structures is ectodermal in origin?


756) Tablets to prevent contraception contain


757) The living organisms can be unexceptionally distinguished from the non-livings on the basis of their ability
for


758) Inner mass of cell or embryoblast give rise to


759) Most of the organs are formed during ….. of development


760) How many compartments (approx.) are there in each human testis?


761) The lytic enzyme present in semen is


762) In which of the following, the dead space is highest?


763) In menstrual cycle, the menstrual phase last for


764) Cryptorchidism is a condition in which


765) At which phase, both LH and FSH attain a peak level?


766) Synthesis of testosterone by Leydig cells is stimulated by


767) Select human development stages and its place at occurrence in normal pregnant woman


768) Region outside the seminiferous tubules is called


769) Hormone which stimulates the ‘let down’ release of milk from mother’s breast when the baby is suckling,
is


770) Corpus spongiosum is found in


771) Primary spermatocyte differs form spermatogonium in


772) During ovulation all of the following occur except


773) In human all the three germ layers are originated from


774) How many sperms are formed by four primary spermatocytes?


775) Stem cell can give rise to/the


776) Statement 1: Zona pellucida do not disappears when blastocyst reaches the uterus
Statement 2: Role of zona pellucida is to check the implantation of the blastocyst at the veginal site


777) Statement 1: A woman passes out hCG in the urine during pregnancy
Statement 2: Presence of hCG in urine is the basis for pregnancy test


778) Statement 1: Production of FSH increases, while that of LH decreases in the ovulation phase
Statement 2: Due to decrease in the level of LH, ovulation (releasing of ova) takes place


779) Statement 1: Parthenogenesis is a kind of variation of sexual reproduction
Statement 2: In parthenogenesis a young one develops from an ovum but without fertilisation


780) Statement 1: Testis are located in the scrotum, outside the coelom
Statement 2: A vaginal coelom partly surrounds the testis in the scrotum


781) Statement 1: Ovum retains most of the contents of the primary oocyte and is much larger than a
spermatozoan
Statement 2: Ovum needs energy to go about in search of a spermatozoan for fertilisation


782) Statement 1: In humans, the gamete contributed by the male determines whether the child produced
will be male or female
Statement 2: Sex in humans is a polygenic trait, depending upon a cumulative effect of some genes on
X-chromosome


783) Statement 1: Senescence is the time when age associated defects are manifested.
Statement 2: Certain genes may be undergoing sequential switching on and off during one’s life.


784) Statement 1: A sperm sticks to an egg for fertilization
Statement 2: Interaction of surface receptors, fertilisin on the egg and antifertilisin on the sperm head
makes them adhere together


785) Statement 1: Due to fragmentation in Planaria each part develops the remaining body parts and
becomes a complete animal.
Statement 2: Differentiated tissue present in each broken part of Planaria undergoes dedifferentaition
and then differentiation for regeneration


786) Statement 1: Holoblastic cleavage with almost equal sized blastomeres is a characteristic of placental
animals.
Statement 2: Eggs of most mammals, including human, are of centrolecithal type.


787) Statement 1: Cleavage in human zygote is holoblastic
Statement 2: Human egg contains abundant yolk in ooplasm


788) Statement 1: In a Graafian follicles, the primary oocyte and the follicle cells may be regarded as sibling
cells
Statement 2: Both arises from the same parent cell, the oogonium, by mitotic divisions


789) Statement 1: Twins may arise from a single egg or from two egg
Statement 2: One egg gives rise to identical twins by separation of blastomeres and two eggs produces
non-identical twins


790) Statement 1: Old age is not an illness. It is a continuation of life with decreasing capacity for
adaptation.
Statement 2: Cessation of mitosis is a genetically programmed event.


791) Statement 1: Testis originate in the abdomen but later descend into the scrotum under the influence of
testosterone
Statement 2: The interstitial (Leydig’s cells) of the testes secrete male sex hormone, inhibin


792) Statement 1: In the testis, spermatogenesis occurs in the seminiferous tubules and testosterone
secretion takes place in the Sertoli cells
Statement 2: Testosterone brings growth and maturation of primary sex organs and also development
of accessory sex characters


793) Statement 1: Menstrual phase is also called shedding tears of lost ovum
Statement 2: In the menstrual phase cast of endometrial lining along with ovum takes place due to
reduced titre of oestrogen and progesterone


794) Statement 1: Placenta is connected to the foetus by an umbilical cord
Statement 2: Foetal components of the placenta are derived from the chondroblast


795) Statement 1: Infection of urethra is more common in female than male
Statement 2: Urethra is shorter in female than male


796) Arrange the events of menstrual cycle as they occur
I. Secretion of FSH
II. Growth of corpus luteum
III. Growth of follicle and oogenesis
IV. Ovulation
V. Sudden increase in level of LH


797) In humans, at the end of the first meiotic division, the male germ cells differentiate into the


798) A Change in the amount of yolk and its distribution in the egg will affect


799) Androgen Binding Protein (ABP) and inhibin are secreted by


800) Heart is formed is embryo during …… of development


801) External genitalia develops in the …… of development


802) Appearance of hair on head is observed during …… of development


803) Foetus develops limbs and digits in its … of development