In mammals, the oocyte is surrounded by
A) polar bodies.
B) the zona pellucida.
C) follicle cells.
D) vitelline membrane.
E) nurse cells.
Correct Answer:
Verified
Q21: In species of hard coral such as
Q22: Which one of the following statements is
Q23: Primordial germ cells
A) are relatively numerous in
Q24: In oogenesis
A) the primary oocyte divides symmetrically
Q25: In spermatogenesis four haploid spermatids are formed
Q27: The first diploid cell formed after fertilisation
Q28: Egg activation
A) occurs when the acrosomal vesicle
Q29: Additional sperm are prevented from fusing with
Q30: In many animals, excluding mammals, the contribution
Q31: Gametogenesis is
A) a sequence of biological modifications
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