Question

Mention the sex chromosomes in a male and female embryo.

Answer 1

Sex chromosomes in a male and female embryo:

1. Humans have 23 pairs of chromosomes. Among these, 22 pairs are known as autosomes.
2. The remaining pair is called the ‘sex chromosome’ since it plays a vital role in sex determination.
3. Human sex chromosomes are referred to as X and Y.
4. A male embryo has both X and Y (XY) sex chromosomes.
5. A female embryo has two X (XX) sex chromosomes.
6. XX and XY are sex chromosomes present in female and male embryos respectively.