Figure 20-23a
Use the figure above (Figure 20-23a)to answer the corresponding questions.

-Which number in the figure represents inactivation of ZP3 receptors and hardening of the zona pellucida?
A)1
B)2
C)3
D)4
E)5

Question

Figure 20-23a
Use the figure above (Figure 20-23a)to answer the corresponding questions.
 
-Which number in the figure represents inactivation of ZP3 receptors and hardening of the zona pellucida?
A)​1 
B)2 
C)3 
D)4 
E)​5

Quizplus · Accepted Answer

The inactivation of ZP3 receptors and hardening of the zona pellucida occur after fertilization to prevent polyspermy, ensuring that only one sperm can fertilize the egg. This process is represented by the stage following sperm entry, which is typically associated with changes in the zona pellucida, including its hardening and the inactivation of ZP3 receptors to block additional sperm from binding and penetrating the egg.

Figure 20-23a Use the Figure Above (Figure 20-23a)to Answer the Corresponding Questions