Question
Question: Which one of the following events immediately follows the entry of a spermatozoan into an oocyte...
Which one of the following events immediately follows the entry of a spermatozoan into an oocyte
A
An increase in the permeability of the oocyte Membrane
B
An increase in activity of proteolytic enzymes
C
A decrease in the metabolic rate of the oocyte
D
Thickening of the vitelline membrane
Answer
Thickening of the vitelline membrane