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.
(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.