Egg activation
A) occurs when the acrosomal vesicle bursts.
B) occurs when the plasma membranes of the sperm and egg fuse.
C) is when there is a change in the permeability of the egg membrane and a decrease in intracellular Ca2+.
D) is characterised by a temporary cessation in protein synthesis by the egg.
E) does not occur until the pronuclei fuse.
Correct Answer:
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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
Q26: In mammals, the oocyte is surrounded by
A)
Q27: The first diploid cell formed after fertilisation
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
Q32: The structure of a mature human sperm
Q33: As the mammal egg matures it is
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