Question

Distinguish between pre-zygotic and post zygotic isolations. Explain different mechanism of post-zygotic isolations.​

Answer 1

Answer:

Explanation:

postzygotic reproductive isolating mechanisms? Prezygotic isolation always prevents copulation. Prezygotic isolation prevents fusion of gametes; postzygotic isolation occurs after fertilization. Postzygotic isolation prevents the formation of hybrids

Answer 2

A zygote is the union of the sperm cell and the egg cell. Also known as a fertilized ovum, the zygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, the zygote eventually becomes an embryo.