A) one
B) two
C) twelve
D) numerous
Correct Answer: A
Solution :
In Selaginella the microspore forms a thirteen celled male gametophyte as a result of segmentation. The deposition of the 13 cells is as follow: (i) One prothallial cell which is basal lateral in position (ii) Eight jacket cells which are peripheral in position (iii) Four primary androgonial cells which are central in position.
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