A) laser beam stimulates growth of pollen tube
B) the region of emergence of pollen tube is not harmed
C) vegetative cell is not damaged
D) contents of killed generative cell stimulate pollen
Correct Answer: C
Solution :
Generative cell was destroyed by laser, but a normal pollen tube was still formed because vegetative cell is not damaged. 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.
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