Question

Write explanatory notes on Metabolic activation of the egg.

Answer 1

it is the process of fusion male and female gametes.the penetration of an egg by a sperm evokes dramatic responses in the egg or the zygote which immediately starts dividing .the series of rapid divisions which convert the zygote into a multi cellular body,are called cleavages divisions. as a result ,the large size egg is converted into a large number of small cells,held together forming the multicellular body,known as blastula