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Question

What happens in meiosis during oogenesis?


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Solution

Meiosis:

Meiosis is the process by which a single cell divides twice to produce four cells with half the original genetic information.

Oogenesis:

  1. Oogenesis is the process by which female gametes are formed.
  2. Oogenesis is a type of gametogenesis in which ova, also known as female gametes, are generated, and the resulting female gamete is known as an ovum.
  3. Oogenesis occurs in the ovaries' outermost layers.
  4. Oogenesis begins with a germ cell called an oogonium, but this cell multiplies by mitosis, culminating in one to two million cells in the embryo.
  5. Mitosis occurs in diploid oogonium until one develops into a primary oocyte, which initiates the initial meiotic division but then stops.
  6. This division will be completed as the follicle develops, producing a haploid secondary oocyte and a smaller polar body.
  7. The secondary oocyte initiates and then terminates the second meiotic division.
  8. It will not continue to divide unless it is fertilized by a sperm.
  9. A developed ovum and another polar body are formed if this occurs.
Explain The Process Of Oogenesis In Humans - Biology Q&A

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