Q:

Concerning maturation of the female gamete (oogenesis), when do the oogonia enter meiosis I and undergo DNA replication to form primary oocytes?

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Concerning maturation of the female gamete (oogenesis), when do the oogonia enter meiosis I and undergo DNA replication to form primary oocytes?


  1. During fetal life
  2. At birth
  3. At puberty
  4. With each ovarian cycle
  5. Following fertilization

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A. All primary oocytes are formed by month 5 of fetal life, so no oogonia are present at birth.

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