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14 votes
14 votes
During the process of fertilization, which step happens first?

The sperm’s nucleus enters the oocyte cell.
Enzymes break down the protective layer of the oocyte.
A sperm attaches to an oocyte.
The plasma membrane of the oocyte changes.

User Doogie
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1 Answer

8 votes
8 votes
A Sperm attaches to an Ooctye
User Darcyparker
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