sridevibandaru24
Forum Guru
Topics: 33
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Most oocytes generated during fetal life become atretic and degenerate
A. at menopause
B. between birth and puberty
C. between the 5th and 7th fetal month
D. following ovulation during each menstrual cycle
E. during early postnatal periods
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| nav007
Forum Newbie
Topics: 0
Posts: 6
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D.Following ovulation during each menstrual cycle.
During each menstrual cycle several primary stage follicles are stimulated to grow, via FSH. Under normal circumstances only one of these follicles reaches full maturity, while the others degenerate and become atretic. Eventually the degenerating oocytes form a corpus atreticum; where the cells of the follicular cells get replaced by connective tissue.
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| ManuNastai
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C
there are a few million oocites formed in the fetal development, but most of them undergo apoptosis before birth, so the female newborn has a few hundred thousands left of which onlt about 4-500 will end in secondary oocytes durring the life.
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| proctalgia
Forum Senior
Topics: 2
Posts: 209
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The correct answer is C
There are about 400,000 follicles in the ovaries at the time of birth.This is a reduction from millions at the begining.So the process of apoptosis is over at birth
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