Multiple Choice
Why would an increased level of calcium ions be observed in a newly fertilized sea urchin egg?
A) Calcium facilitates the binding of bindin to the bindin receptor.
B) Increased calcium allows the sperm and egg nuclei to join efficiently,resulting in the formation of a zygote nucleus.
C) Calcium promotes release of proteases from the egg,which digest the egg-cell receptor and prevent polyspermy.
D) Calcium promotes an influx of water that results in a fertilization envelope.
E) Answers C and D
Correct Answer:
Verified
Correct Answer:
Verified
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