Multiple Choice
Which statement about blocks to polyspermy in sea urchins is true?
A) The slow block creates a physical barrier that sperm cannot penetrate.
B) Blocks to polyspermy prevent more than one sperm from approaching an egg.
C) The fast block causes release of the acrosomal enzymes.
D) The fast block results from a change in the electrical charge difference across the plasma membrane of the sperm.
E) The slow block results from a sequestration of calcium in the endoplasmic reticulum of the egg.
Correct Answer:
Verified
Correct Answer:
Verified
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