The 13-celled male gametophyte in Selaginella | vedclass

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Question

(A) In Selaginella,the male gametophyte development begins within the microspore while it is still inside the microsporangium.The mature $13$-celled m

Vedclass · Accepted Answer

$12$ cells of antheridium $+ 1$ prothallial cell

Vedclass · Answer

(A) In Selaginella,the male gametophyte development begins within the microspore while it is still inside the microsporangium.The mature $13$-celled male gametophyte consists of:$1$ prothallial cell (which is the first cell formed).$4$ jacket cells (which form the outer layer of the antheridium).$8$ androgonial cells (which eventually produce the spermatozoids).Thus,the total number of cells is $1 + 4 + 8 = 13$ cells.This corresponds to $1$ prothallial cell and $12$ antheridial cells ($4$ jacket $+ 8$ androgonial cells).

The $13$-celled male gametophyte in Selaginella is

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