Sexual Reproduction In Flowering Plants Ques 92
92. Total number of meiotic division required for forming 100 zygotes/ 100 grains of wheat is
(a) 100
(b) 75
(c) 125
(d) 50
Show Answer
Answer : c
Hints & Solutions
(c) 100 zygotes requires 100 pollen grains and 100 embryo sacs. 100 pollen grains 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.
BETA
