Which of the Following Prevents Polyspermy

question 141

Multiple Choice

Which of the following prevents polyspermy?

• A) inactivation of sperm -binding proteins in the zona pellucida and hardening of the zona pellucida
• B) sealing of the corona radiata and hardening of the zona pellucida
• C) release of toxins to sperm by the fertilized ovum and hardening of the zona pellucida
• D) sealing of the corona radiata and release of toxins to sperm by the fertilized ovum
• E) inactivation of sperm -binding proteins in the zona pellucida and release of toxins to sperm by the fertilized ovum

---

Definitions:

Opportunity Cost

The value of the best alternative that is foregone when a particular decision is made.

Transfer Price

The price at which divisions of a company transact with each other, such as the trade of supplies or labor between departments.

Valve Division

A specialized department within a company that focuses on the production and sales of valve-related products.

Pump Division

A specialized section within a company focusing on producing and managing pump-related products and services.