Reproduction in Flowering Plants Multiple Choice Questions and Answers

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