The point of sperm entry during fertilization forms
Centre of rotation of embryo
Axis of cleavage
Grey crescent
Dorsal lip of blastopore
Unit cell of blastula is
Blastocyst is a modified blastula of
Explain : When and how the sex of the baby is determined ?
What is true about cleavage in the fertilised egg in humans
Find $A$ to $D$ in figure