mjl1717
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Approximately how many oocytes does a normal female have at puberty.
a) 12 million
b) 6 million
c) 2 million
d) 500,000 thousand
e) 50,000 thousand
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| PsychDr2B
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The closest answer is D) 500,000
Oocyte and Follicle Development
Period in Life.......Number of Oocytes
5-6 months.........6-7 million (oogonia)
Birth....................1-2 million (primary oocytes)
Puberty...............400,000
At 5 months of gestation there is a peak of about 6-7 million oogonia. After 5-6 months production of oogonia stops and never resumes. These oogonia become primary oocytes by the end of gestation. At puberty there are only about 400,000 primary oocytes. Only about 400 of these oocytes will actually ovulate during a woman's lifetime.
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| mjl1717
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Very good -Yes, and thanks for adding the lifetime # of 400.
For those who dont know that 400 was gotten by 12 ovulations per year
times the amount reproductive years a women has. (1st menstrual cycle to menopause)
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| peekay
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and average reproductive age is 35 years. so 35x12=400
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| mjl1717
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35times 12 =420
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| peekay
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THANKS mjl FOR CORRECTION
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