Which of the following prevents polyspermy?
A) sealing of the corona radiata and release of toxins to sperm by the fertilized ovum
B) inactivation of sperm- binding proteins in the zona pellucida and release of toxins to sperm by the fertilized ovum
C) release of toxins to sperm by the fertilized ovum and hardening of the zona pellucida
D) sealing of the corona radiata and hardening of the zona pellucida
E) inactivation of sperm- binding proteins in the zona pellucida and hardening of the zona pellucida
Correct Answer:
Verified
Q12: What releases androgens in females?
A)theca cell
B)Sertoli cell
C)granulosa
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Q15: The diploid, fertilized ovum is called a(n)
A)blastula.
B)morula.
C)polar
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Q19: Which of the following is a correct
Q20: What hormone(s)is/are secreted by the corpus luteum?
A)estrogens
Q21: The mixture of sperm with fluid from
Q22: What provides nutrients to the developing gamete
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