Multiple choice

Oocytes can be defined as

  1. the ova that have not yet completed the process of oogenesis

  2. the points on chromosomes where ova are formed

  3. the male counterpart of ova

  4. a mature ovum
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A Correct answer
Explanation

In humans, about 7 million primary oِcytes are produced at beginning of the fetal stage, before birth. Of these, less than 500 eventually become secondary oِcytes after puberty and are released at ovulation. Oogenesis is completed at conception.

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