In the slow block to polyspermy, sperm penetration releases an inflow of , which in turn stimulates the .
A)Cl-; corona radiata
B)K+; zona pellucida
C)Na+; fertilization membrane
D)Ca₂+; fertilization membrane
E)Ca₂+; cortical reaction

Question

Quizplus · Accepted Answer

The slow block to polyspermy involves the release of calcium ions (Ca₂+) which triggers the cortical reaction, leading to changes in the egg's outer layer to prevent further sperm entry.

In the Slow Block to Polyspermy, Sperm Penetration Releases an Inflow