Question

the no. of reduction divisions needed to form 200 wheat grains? explain

Answer 1

since for production of one seed, one male gamete as well as one female gamete is responsible.

pollen grains supply male gamete which undergone one reductional division two form four male gametes. Hence, for 200 seeds 200 male gametes are required. So, reductional divisions required are 200/4=50

in case of female gametes one reductional division makes only one female gamete and 3 degenerated cells. Hence, for 200 seeds 200 female gametes are required which will be formed from 200 reductional divisions

in total, 250 reductional divisions are required...

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