Question

Are primary oocytes haploid?

Answer 1

Haploid:

1. Cells with a single set of chromosomes. This is represented by “n”
2. Example- gametes (female & male germ cells) in humans.

Diploid:

1. Cells with two complete sets of chromosomes. This is represented by “2n”.
2. Example- Zygote, skin cells, blood cells, etc, in humans.

Oocyte:

1. An egg before maturation is called an oocyte.
2. The primary oocyte is a diploid cell & is formed from the oogonia/gamete mother cell by mitotic division.
3. It gives rise to secondary oocytes after the meiosis-I division. These secondary oocytes are haploid.
4. These secondary oocytes undergo meiosis-II to form haploid ovum.