A human female forms how many eggs from one original cell?

A human ovary produces a single mature egg (ovum) from millions of immature germ cells (oogonia).

1. Primordial germ cells (PGCs): These are the earliest germ cells, formed during embryonic development. In a female fetus, PGCs migrate to the ovaries.

2. Oogonia: PGCs multiply by mitosis to become oogonia. Each oogonium is a diploid cell with 46 chromosomes.

3. Primary oocytes: At puberty, oogonia enter meiosis, the process of cell division that produces gametes. The first round of meiosis produces primary oocytes, which are also diploid cells.

4. Secondary oocytes: Primary oocytes undergo the second round of meiosis to form secondary oocytes, which are haploid cells with 23 chromosomes.

5. Mature eggs (ova): Secondary oocytes are released from the ovary into the fallopian tube during ovulation. If an egg is fertilized by a sperm, it develops into an embryo. If it is not fertilized, it is reabsorbed into the body.

So, from one original germ cell, a woman produces only one mature egg through the complex process of meiosis and cellular development.

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