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  4. Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat is

Q. Total number of meiotic divisions required for forming 100 zygotes/100 grains of wheat is

 6153  215 AIPMTAIPMT 1988Sexual Reproduction in Flowering Plants Report Error

Solution:

For formation of 100 zygotes, 100 male gametes and 100 female gametes (eggs) are required. 100 male gametes are developed from 100 microspores (from 25 meiotic divisions) and 100 eggs are developed from 100 megaspores (from 100 meiotic division). Hence, number of meiotic divisions necessary for 100 zygotes formation = 25 + 100 = 125.