Sexual Reproduction in Flowering Plants Question 32
32. Which one of the following statements is wrong?
[2012M]
(a) When pollen is shed at two-celled stage, double fertilization does not take place.
(b) Vegetative cell is larger than generative cell.
(c) Pollen grains in some plants remain viable for months.
(d) Intine is made up of cellulose and - pectin.
Show Answer
Answer : a
Hints & Solutions
(a) In over 60 per cent of angiosperms, pollen grains are shed at cell 2-celled stage. In the remaining species the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed (3-celled stage.)
