Question

What is a blastocyst?

Options

• The innermost layer of cells in the morula

• An extra-embryonic membrane that stores waste

• A hollow embryonic stage formed after morula in humans

• A solid ball of cells produced by cleavage

Answer 1

A blastocyst is the hollow embryonic structure that develops after the morula stage in human development. It consists of three major components: the outer trophoblast layer, the inner cell mass, and a fluid-filled cavity called the blastocoel.