URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
FEMALE REPRODUCTIVE TRACT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Females make primary oocytes everyday
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False, they make them every month
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False, they make them every year
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False, they are born with all the primary oocytes they’ll ever have
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True
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Explanation:
Detailed explanation-1: -All primary oocytes are formed by the fifth month of fetal life and remain dormant in prophase of meiosis I until puberty. During a womans ovarian cycle one oocyte is selected to complete meiosis I to form a secondary oocyte (1N, 2C) and a first polar body.
Detailed explanation-2: -Many of those eggs will be lost before puberty sets in through a natural process called ovarian follicle atresia, leaving a woman with around 300, 000 eggs at the time of puberty. Of those, it is estimated that a woman may lose as many as a thousand eggs per month over her fertile years.
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