Reproduction in Flowering Plants (Multiple Choice Questions and Answers)

Reproduction in Flowering Plants

Multiple Choice Questions and Answers

1.   Hydrophily occurs in

(a) Nymphaea

(b) Eichhornia

(c) Nelumbo

(d) Vallisneria

Answer: (d) Vallisneria

2. Lever or turn-pipe mechanism of pollination is found in

(a) Salvia

(b) Ficus

(c) Antirrhinum

(d) Wheat

Answer: (a) Salvia

3. Ornithophily is pollination by

(a) Bats

(b) Birds

(c) Wind

(d) Humans

Answer: (b) Birds

4. In Kigelia, pollination occurs by

(a) wind

(b) insects

(c) bats

(d) birds

Answer: (c) bats

5. Transfer of pollen to the stigma of another flower of the same plant is

(a) autogamy

(b) allogamy

(c) xenogamy

(d) geitonogamy

Answer: (d) geitonogamy

6. Feathery stigmas occur in

(a) Pea

(b) Datura

(c) Caesalpinia

(d) wheat

Answer: (d) wheat

7. In angiosperms, triple fusion is required for

(a) endosperm

(b) embryo

(c) fruit wall

(d) suspensor

Answer: (a) endosperm

8. Filiform apparatus occurs in

(a) synergids

(b) antipodals

(c) egg nucleus

(d) secondary nucleus

Answer: (a) synergids

9. One of the most resistant biological material present in the outer wall of pollen grain is

(a) cellulose

(b) lignin

(c) lignocelluloses

(d) sporopollenin

Answer: (d) sporopollenin

10. Germ pore is an area where exine is

(a) thick

(b) absent

(c) thick and uniform

(d) uniform

Answer: (b) absent

11. Study of pollen grains is

(a) palaeobotany

(b) paleontology

(c) palynology

(d) pomology

Answer: (c) palynology

12. Polyembryony occurs in

(a) Maize

(b) Citrus

(c) Corchorus

(d) Carthamus

Answer: (b) Citrus

13. Perisperm is

(a) remains of nucellus

(b) outer part of embryo sac

(c) degenerated synergid

(d) degenerated secondary nucleus

Answer: (a) remains of nucellus

14. Function of suspensor of embryo is

(a) absorption of nourishment

(b) formation of secondary embryos

(c) to push the embryo into nutritive region

(d) all the above

Answer: (c) to push the embryo into nutritive region

15. Diploid male angiosperm is crossed with tetraploid female plant endospermic seed will be

(a) haploid

(b) triploid

(c) tetraploid

(d) pentaploid

Answer: (d) pentaploid

16. Nawaschin discovered double fertilization in

(a) Mango and Pear

(b) Papaya and Wheat

(c) Brassica and Iberis

(d) Lilium and Fritillaria

Answer: (d) Lilium and Fritillaria

17. A piece of potato tuber will form a new plant if it possesses

(a) roots

(b) eyes

(c) stored food

(d) branches

Answer: (b) eyes

18. Layering is used in vegetative propagation of

(a) jasmine

(b) rose

(c) mango

(d) All the above

Answer: (a) jasmine

19. Anther represents

(a) male gametophyte

(b) male sporophyll

(c) spermatogonia

(d) female gametophyte

Answer: (b) male sporophyll

20. Bicarpellary gynoecium and oblique ovary occurs in

(a) Banana

(b) Brinjal

(c) Pisum

(d) Mustard

Answer: (b) Brinjal

21. Pollination by snails and slugs is

(a) Ornithophily

(b) Chiropterophily

(c) Entomophily

(d) Malacophily

Answer: (d) Malacophily

22. Pollination by ants is

(a) malacophily

(b) myrmecophily

(c) entomophily

(d) ornithophily

Answer: (b) myrmecophily

23. Heterozygosity is produced following

(a) xenogamy

(b) geitonogamy

(c) autogamy

(d) cleistogamy

Answer: (a) xenogamy

24. Anemophily occurs in

(a) Salvia

(b) Vallisneria

(c) Coconut

(d) Bottle brush

Answer: (c) Coconut

25. Palynology is study of

(a) pollen germination

(b) pollen morphology

(c) pollen development

(d) storage and arrangement of pollen grains

Answer: (b) pollen morphology

26. Embryo sac is

(a) microgametophyte

(b) microsporangium

(c) mega gametophyte

(d) megasporangium

Answer: (c) mega gametophyte

27. Which one is produced as a result of double fertilization?

(a) seed

(b) fruit

(c) megaspore

(d) endosperm

Answer: (d) endosperm

28. Passage of pollen tubes or micropyle while reaching the embryo is

(a) mesogamy

(b) porogamy

(c) dicliny

(d) dichogamy

Answer: (b) porogamy

29. Function of tapetum is

(a) protective

(b) nutritive

(c) respiratory

(d) All the above

Answer: (b) nutritive

30. Sexual reproduction of flowering plants was discovered by

(a) Camerarius

(b) Nawaschin

(c) Strasburger

(d) Maheshwari

Answer: (a) Camerarius

31. Egg apparatus consists of

(a) egg and antipodals

(b) polar nuclei

(c) egg and synergids

(d) egg

Answer: (c) egg and synergids

32. Stem cuttings are commonly used in propagation of

(a) mango

(b) cotton

(c) rose

(d) banana

Answer: (c) rose

33. Mango and guava are propagated through

(a) tissue culture

(b) grafting

(c) stem cuttings

(d) layering

Answer: (b) grafting

34. Formation of embryo directly from nucellus and integument is

(a) adventitive polyembryony

(b) apospory

(c) apogamy

(d) apomixes

Answer: (a) adventitive polyembryony

35. Pollination of Lotus is accomplished through

(a) water

(b) wind

(c) insects

(d) all the above

Answer: (c) insects

36. In casuarinas fertilization occurs through

(a) chalazogamy

(b) misogamy

(c) apogamy

(d) intraspecific

Answer: (a) chalazogamy

37. Intraspecific incompatibility is overcome by

(a) self pollination

(b) wetting of anthers

(c) wetting of stigmas

(d) mixed pollination

Answer: (d) mixed pollination

38. Bud pollination is

(a) chiropterophily

(b) ornithophily

(c) malacophily

(d) myrmecophily

Answer: (b) ornithophily

39. Ginger is multiplied vegetatively by means of

(a) bud

(b) tuber

(c) corm

(d) rhizome

Answer: (d) rhizome

40. Piece of plant part used in tissue culture is called

(a) explants

(b) inoculants

(c) somaclone

(d) clone

Answer: (a) explants

41. Callus is

(a) undifferentiated growing mass of cells

(b) tissue developed in the area of wood

(c) material that heals injury in phloem

(d) all the above

Answer: (d) all the above

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

(a) xenia

(b) metaxenia

(c) ruminate

(d) endosperm

Answer: (b) metaxenia

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

(a) antipodal cells

(b) egg cell

(c) synergid

(d) secondary nucleus

Answer: (c) synergid

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

(a) sporopollenin

(b) suberin

(c) cutin

(d) callose

Answer: (a) sporopollenin

45. Stalk of ovule is called

(a) funiculus

(b) placenta

(c) hilum

(d) chalaza

Answer: (a) funiculus

46. In which of the following production of seedless fruit is undesirable?

(a) coconut

(b) apple

(c) plum

(d) mango

Answer: (a) coconut

47. Monosporic 8 nucleate embryo sac is referred to as

(a) allium type

(b) peperomia type

(c) polygonum type

(d) drusa type

Answer: (c) polygonum type

48. The micropile in a seed helps in the entry of

(a) water

(b) pollen tube

(c) male gamete

(d) none

Answer: (a) water

49. The megasporangium of angiosperms on maturity gives rise to

(a) fruits

(b) seed

(c) embryo

(d) cotyledon

Answer: (b) seed

50. The position of shoot apex and monocot embryo is

(a) basal

(b) lateral

(c) terminal

(d) sub terminal

Answer: (b) lateral