Sexual Reproduction in Flowering Plants Question 76
76. Generative cell was destroyed by laser but a normal pollen tube was still formed because
(a) vegetative cell is not damaged [1989]
(b) contents of killed generative cell stimulate pollen growth
(c) laser beam stimulates growth of pollen tube
(d) the region of emergence of pollen tube is not harmed
Show Answer
Answer : a
Hints & Solutions
(a) Each microspore divide by mitotic division making a smaller generative cell and a larger vegetative cell or tube cell. If generative cell is damaged then the normal pollen tube will be formed because pollen tube is formed by vegetative cell, not by generative cell of microspore.
