Question
Biology Question on human reproduction
Grey crescent is the area
A
at the point of entry of sperm into ovum
B
just opposite to the site of entry of sperm into ovum
C
at the animal pole
D
at the vegetal pole
Answer
just opposite to the site of entry of sperm into ovum
Explanation
Solution
Grey crescent is the area just opposite to the site of entry of sperm into ovum. It marks the future dorsal side of the embryo.