1. Eggs are structured to prevent multiple sperm from fertilizing
it. Discuss what those structures are...
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Biology
1. Eggs are structured to prevent multiple sperm from fertilizingit. Discuss what those structures are and how they help preventextra sperm from getting into the egg.
2. Explain where fertilization occurs in the female reproductivesystem. How does this lead to the rare ectopic pregnancy?
3. Sometimes people say that the theory of evolution says we humanscame from chimpanzees .explain why this argument is flawed.
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1 Zona pellucida is the structure in egg that prevents polyspermy It is a structure that surrounds mammalian eggs The structure becomes impermeable to sperms by the cortical reactions after fertilization In Cortical reactions enzymes released by cortical granules modify zona pellucida by digesting sperm receptor glycoproteins so that they can no longer bind
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