This Figure Shows the Three Phases of Fertilization

question 23

Multiple Choice

This figure shows the three phases of fertilization.Which statement is not correct concerning fertilization?

• A)Digestive enzymes released from the acrosome eat away the intercellular connections in the corona radiata.
• B)Once a sperm has penetrated the oocyte,the zona pellucida hardens to prevent additional sperm from penetrating.
• C)Only the sperm nucleus enters the oocyte cytoplasm.
• D)Fusion of pronuclei produces a diploid nucleus.
• E)All of the choices are correct.

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