Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat are

Options

A. 100
B. 75
C. 125
D. 50

Answer

C

Explanation

100 zygotes requires 100 pollen grans and 100 embryo sacs 100 pollen grans are formed from 25 microspore mother cells while 100 embryo sacs are formed from 100 functional megaspores which in turn are produced by 100 megaspore mother cells since three out of four megaspores degenerate in each case.