How Does a Sperm Penetrate an Egg

question 73

Multiple Choice

How does a sperm penetrate an egg?

• A)Enzymes in the acrosome dissolve the zona pellucida.
• B)The sperm melts its way inside,using the nucleic acids in its DNA.
• C)The forward pressure of the flagellum forces it through the plasma membrane.
• D)Spermatids are wedge-shaped and are chemically attracted to the inside cytoplasm of the egg cell.
• E)The haploid sets of chromosomes match across the membrane and this triggers the membrane to dissolve.

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