Reproduction in Flowering Plants MCQs Quiz Multiple Choice Questions & Answers

1. A callose covering is present over

1. egg
2. pollen grain
3. male gamete
4. microspore mother cell

2. A diploid female plant is crossed with tetraploid male. The ploidy of endosperm will be

1. Tetraploidy
2. Triploidy
3. Pentaploidy
4. Diploidy

3. An advantage of cleistogamy is

1. it leads to 2rversity
2. seed dispersal is more efficient and widespread
3. each visit of pollinator brings hundered of pollen grains
4. seed set is not dependent on pollinators

4. Anemophily occurs in

1. Salvia
2. Vallisnaria
3. Coconut
4. Bottle brush

5. Anther represents

1. male gametophyte
2. male sporophyll
3. spermatogonia
4. female gametophyte

6. Anthesis is

1. formation of pollen
2. development of anther
3. reception of pollen by stigmas
4. opening of floral bud

7. Arrangement of nuclei in normal dicot embryo sac is

1. 3+3+2
2. 2+4+2+
3. 3+2+3
4. 2+3+3

8. Bicarpeliary gynaecium and oblique ovary occurs in

1. Banana
2. Brinjal
3. Pisum
4. Mustard

9. Bird pollination is

1. chiropterophily
2. ornithophily
3. malacophily
4. myrmecophily.

10. Cleistbgamous flowers are

1. self pollinated
2. insect pollinated
3. bird pollinated
4. wind pollinated

11. Device for self pollination is

1. heterostyly
2. dicliny
3. unisexuality
4. none of the above

12. Double fertilization involves

1. fertilization of an egg by two male gametes
2. fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube
3. fertilization of egg and central cell by two sperms brought by two different pollen tubes
4. Fertilization of egg and central cell by two sperms brought by same pollen tube

13. Effect of pollen on character of pericarp and seed coat is

1. xenia
2. metaxenia
3. chimera
4. ruminate endosperm

14. Egg apparatus consists of

1. egg and antipodals
2. polar nuclei
3. egg and synergids
4. egg

15. Embryo sac is

1. microgametophyte
2. microsporangium
3. megagametophyte
4. megasporangium

16. Endosperm is completely consumed by the developing embryo in Pea and Groundnut

1. Maize and Castor
2. Castor and Groundnut
3. Maize and Pea

17. Entry of pollen tube through chalazal end is

1. syngamy
2. porogamy
3. basigamy
4. mesogamy.

18. Formation of embryo directly from nucellus and integument is

1. adventitive polyembryony
2. apospory
3. apogamy
4. apomixis

19. Function of guiding and attracting pollen tube is done by

1. antipodal cells
2. egg cell
3. synergids
4. secondary nucleus

20. Function of tapetum is

1. protective
2. nutritive
3. respiratory Id
4. all the above

21. Heterozygosity is produced following

1. xenogamy
2. geitonogamy
3. autogamy
4. cleistogamy

22. In a type of apomixis called adventive embryony embryos develop directly from

1. nucellus or integument
2. zygote
3. synergids or antipodals of embryo sac
4. Accessory embryo sacs in the ovule

23. In Casuarina fertilization occurs through

1. chalazogamy
2. mesogamy
3. porogamy
4. apogamy

24. In plant part having two generations is

1. embryo
2. unfertilized ovule
3. germinated pollen grain
4. seed

25. Intraspecific incompatibility is overcome by

1. self pollination
2. welting of anthers
3. wetting of stigmas
4. mixed oollination

26. Largest cell of ovule is

1. megaspore mother cell
2. antipodal cell
3. central cell
4. size of cells variable

27. Mesogamy is

1. fusion of similar male and female gametes
2. fusion of morphologically different but physiologically similar gametes
3. entry of pollen tube through integument
4. none of the above

28. Part which is grafted or the stump of another is

1. graft
2. bulbil
3. scion
4. stock

29. Passage of pollen tube through micropyle while reaching the embryo sac is

1. mesogamy
2. porogamy
3. dicliny
4. dichogamy

30. Pollen grains are able to tolerate extremes of temperature and desiccation as its exine is made of

1. Sporopollenin
2. Suberin
3. Cutin
4. Callose

31. Pollination by snails and slugs is

1. ornithophily
2. chiropterophily
3. entomophily
4. malacophily

32. Pollination of Lotus is accomplished through

1. water
2. wind
3. insects
4. all the above.

33. Secondary nucleus present in the middle of embryo sac is

1. tetraploid
2. triploid
3. diploid
4. haploid

34. Sexual reproduction of flowering plants was discovered by

1. Camerarius
2. Nawaschin
3. Strasburger
4. Maheshwari

35. Total number of nuclei involved in double fertilisation is

1. Two
2. Three
3. Four
4. Five

36. Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called as

1. Geitonogamy
2. Karyogamy
3. Autogamy
4. Xenogamy

37. Unisexuality of flowers prevents

1. autogamy and geitonogamy
2. both geitonogamy and xenogamy
3. autogamy but not geitonogamy
4. geitonogamy but not xenogamy

38. What is the function of filiform apparatus at the entrance into ovule ?

1. Guides pollen tube from synergid to egg
2. Helps in the entry of pollen tube into a synergid
3. Prevents entry of more than one pollen tube into a synergid
4. Brings about opening of the pollen Libe

39. Which one is produced as a result of double fertilisation ?

1. Seed
2. Fruit
3. Megaspore
4. Endosperm

40. Wind pollinated flowers are

1. Small, producing large number of dry pollens
2. large, producing abundant nectar and pollen
3. small producing nectar and dry pollen
4. small, brightly colored, producing large number of pollen grains