Practice Test


1) A typical example of cross pollination is:


2) Continued self-pollination generation after generation, result in:


3) Stigma is always sticky and rough in:


4) The chief pollinators of our agri-horticultural crops are:


5) Phenomenon of opening of flower buds is called:


6) In wheat and sugarcane the pollination takes place by:


7) If water causes pollination, it is called:


8) Insect pollinated flowers possess:


9) Protandry is a condition in which:


10) Cleistogamous flowers are:


11) In Ficus the pollination is affected by:


12) Palynology deals with the study of:


13) When an anther dehisces towards the centre of the flower, it is called:


14) Lever mechanism found in the pollination of:


15) When male and female parts of a flower mature at different times, it is termed:


16) Pollination by bats is known as:


17) Cross-pollination is advantageous because it results in formation of:


18) To avoid self-pollination, the pollen grains of some flowers have no fertilizing effect on the stigma of the same flower. This condition is:


19) If a pollen of a flower falls on the stigma of another flower belonging to same plant, it is:


20) Malacophily is pollination by:


21) Which one of the following part of pistil receives the pollen during pollination?


22) The following plant has pollination above ground but its fruit develops underground?


23) Pollinia are sac-like structures in which:


24) Allogamy through biotic agency is called:


25) Chiropterophilous flowers possess:


26) Pollination of Pinus is:


27) In Salvia pollination takes place by:


28) The Yucca flower is pollinated by:


29) Colour of night blooming flowers is usually:


30) Translator mechanism for pollination is present in:


31) In ornithophilous plants:


32) What it pre-requisite for self-pollination:


33) Hypohydrophily occurs in:


34) In moth pollinated flowers:


35) The wasp Blastophaga is associated with the pollination of:


36) Bristle mechanism for pollination is seen in:


37) The moth Pronuba is associated with the pollination of:


38) The moth Dianthoecia is associated with the pollination of:


39) The condition best suited for autogamy is:


40) When snails pollinate a flower, it is termed as:


41) Translator mechanism for pollination is seen in:


42) The pedicel of the female flower coils after fertilization in:


43) The act of pollination was used to be performed by Aryan kings as a religious ceremony in:


44) Mulberry is pollinated by:


45) The phenomenon of pollen grains being transferred to stigma by air is called:


46) Bees are important to agriculture as they:


47) Feathery stigma occurs in:


48) Pollination characteristically occurs in:


49) Ornithophily refers to:


50) Chief pollinators of agricultural crops are:


51) Transfer of pollen to the stigma of another flower of the same plant is:


52) Fragrant flowers with well developed nectaries are an adaptation for:


53) Pollination occuring in closed flowers is:


54) Coloured constructions in flowers of Euphorbia and Poinsettia are:


55) In Kigelia pinnata / Sausage tree, pollination is performed by:


56) Apple growers usually keep bees in the orchard even though apples are usually wind-pollinated because:


57) Self-pollination means:


58) Stigma is always rough and sticky in:


59) Progeny resulting from cross-pollination:


60) Maturation of stamens and pistils at different times in the same flower is called:


61) In bisexual flowers when the gynoceium matures earlier than the androecium, it is called:


62) Myrmecophily is a beneficial association between some flowering plants and:


63) Pollination by ants is:


64) Some flowers possess pleasant odour and attractive colours for:


65) Anemophily type of pollination is found in:


66) Anemophily means:


67) Wind pollination is common in:


68) In which one of the following pollination is autogamous?


69) Crows help pollination of:


70) Jasmine shows:


71) A flower with over one thousand stamens is:


72) The allogamy is best favoured by:


73) Cross pollination in true genetic sense within a species is called as:


74) Cleistogamous flowers are not seen in:


75) When some plants produce more than one type of flowers, the phenomenon is called as:


76) The flowers of Primula are dimorphic due to:


77) Cantharophilous flowers are pollinated by:


78) The smell in the flowers of Crataegus is due to:


79) In Kalmia:


80) Above ground cleistogamous flowers are formed late in the season in:


81) The smell in the flowers of Hyacinthus is due to:


82) Piston mechanism for pollination is seen in:


83) Lever mechanism for pollination is seen in:


84) Maize is:


85) When pollen of one flower pollinates stigma of a different flower but on the same plant, this is called as:


86) In grasses the anemophily is most favoured by:


87) Butterflies pollinate:


88) Moth Pronuba / Tegaticula is dependent for its survival on plant:


89) Which of the following is not a water pollinated plant?


90) Spiny or sticky pollen grains and large attractively coloured flowers are associated with


91) Refer the given statements:
(i) Both wind and water pollinated flowers are not very colourful and do not produce nectar.
(ii) Entomophilous flowers are large, colourful,fragrant and rich in nectar.
(iii) Kigelia pinnata is an insect pollinated flower
Which of the above statements is/are incorrect?


92) Flowering plants have developed certain outbreeding devices to discourage self-pollination and to encourage cross-pollination. One of these is not an example of such outbreeding device.


93) Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in


94) _______ cell of the pollen grain divides to form two male gametes.


95) Growth of pollen tube towards embryo sac is


96) What is the function of filiform apparatus in an angiospermic embryo sac?


97) The part of gynoecium that determines the compatible nature of pollen is


98) The three cells found in a pollen grain when it is shed at 3-celled stage are


99) Give below are the events that are observed in an artificial hybridization programme. Arrange them in the correct sequential order and select the correct option.
1. Re-bagging;
2. Selection of parents;
3. Bagging;
4. Dusting the pollen on stigma;
5. Emasculation;
6. Collection of pollen from male parent


100) How many pollen mother cells should undergo meiotic division to produce 64 pollen grains?


101) In a fully developed male gametophyte the number of nuclei is


102) Read the given statements and select the correct option.
Statement 1: Insects visit flowers to gather pollen.
Statement 2: Attraction to flowers prevents the insects from damaging other parts of the plant.


103) Polygonum type of embryo sac is


104) Select the incorrect pair of type of pollination and the corresponding pollination agency.


105) One of the most resistant biological material present in the exine of pollen grain is


106) Part of the gynoecium which receives the pollen is called


107) How many meiotic divisions are required for the formation of 100 pollen grains?


108) Plant with ovaries having only one or a few ovules, are generally pollinated by


109) Even in absence of pollinating agents seed-setting is assured in


110) During the process of fertilization the pollen tube of the pollen grain usually enters the embryo sac through


111) Which of the following statements about sporopollenin is incorrect?


112) Callase enzyme which dissolves callose of pollen terads to separate four pollens is provided by


113) Study of pollen grains is called


114) Pollen grains is a


115) Pollen kitt is generally found in


116) Heterostyly as a contrivance for cross-pollination is found in


117) Several pollen grains from a unit designated as pollinium in family