16 Jun Alabama State BIO 128 – Which of the following does not occur during the process of fertilization
Question
Which of the following does not occur during the process of fertilization?
A. The sperm cell releases acrosomal enzymes.
B. The sperm cell enters the egg and the nucleus is released.
C. The nucleus of the sperm and egg cell fuse.
D. The plasma membrane of the sperm head and egg fuse.
E. The tail bores a hole in the zona pellucida which the head then penetrates.
33. Generally only one sperm fertilizes an egg because
A. sperm compete against one another before entering and only the most fit one is accepted.
B. sperm are so few that two are unlikely to arrive at the same time.
C. one small entry hole called the blastopore allows only one sperm to fit through and then seals.
D. many sperm enter but only one set of chromosomes can fuse with the egg nucleus; the other sperm are absorbed.
E. when the first sperm fuses with the egg membrane, it causes the membrane to depolarize and also separates the fertilization membrane and this gap forms a barrier to any other sperm.
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