A) one
B) two
C) three
D) numerous
Correct Answer: A
Solution :
In Selaginella (spike moss) the number of prothallial cell is one. The microspore germinates inside the microsporangium and are shed at 13-celled stage. The 1st division of microspore (1-1) is asymmetrical and as a result a small lenticular prothallial cell and a large antheridial cell is established. The prothallial cell does not divide further and the entire sporangium develops from the antheridial cell.
You need to login to perform this action.
You will be redirected in
3 sec
