Question

1. Describe the formation of the primordial cell, in detail. What is the difference of formation of the primordial cell and spontaneous generation?

Answer 1

Primordial germ cells, the earliest recognizable precursors of gametes, arise outside the gonads and migrate into the gonads during early embryonic development. Human primordial germ cells first become readily recognizable at 24 days after fertilization in the endodermal layer of the yolk sac

Spontaneous generation is the debunked idea that life can, on a daily basis, arise from nonliving material.

Example : Swan-necked flask used in Pasteur's experiments to disprove spontaneous generation.