A couple undergoes a workup for infertility, which shows that the man has a low sperm count. The couple asks why this is a problem because "it only takes one sperm to fertilize an egg." How could you explain their problem? O The flagella of many sperm must beat against the zona pellucida of the oocyte to destroy it before a single sperm can penetrate. O Many sperm must enter the egg before one is chosen to complete fertilization. O The corona radiata that surrounds the oocyte contains many macrophages that kill most of the sperm that reach the egg. O Although a single sperm fertijizes the egg, many others prepare the egg for its entry.
A couple undergoes a workup for infertility, which shows that the man has a low sperm count. The couple asks why this is a problem because "it only takes one sperm to fertilize an egg." How could you explain their problem? O The flagella of many sperm must beat against the zona pellucida of the oocyte to destroy it before a single sperm can penetrate. O Many sperm must enter the egg before one is chosen to complete fertilization. O The corona radiata that surrounds the oocyte contains many macrophages that kill most of the sperm that reach the egg. O Although a single sperm fertijizes the egg, many others prepare the egg for its entry.
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
Section: Chapter Questions
Problem 11QP: A spermatogonial cell undergoes mitosis before entering the meiotic cell cycle en route to the...
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