In Humans,the Structural Basis for the Slow Block to Polyspermy

question 1

Multiple Choice

In humans,the structural basis for the slow block to polyspermy is the ____________.

• A)Corona radiata
• B)Zona pellucida
• C)Inner acrosomal membrane
• D)Perivitelline space
• E)Plasma membrane of the egg

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Definitions:

Delay Time

A specific duration used to postpone an event or action in a system.

Retentive Timer

An electromechanical relay that accumulates time whenever the device receives power and maintains the current time should power be removed from the device. Loss of power to the device after reaching its preset value does not affect the state of the contacts.

Off-Delay Nonretentive Timer

A timing function that starts counting when its input is turned off and does not retain the timing value after the power is removed.

Time Delay

Time Delay refers to a deliberate pause introduced into a control system or circuit to delay the activation or deactivation of an operation or signal.