What are some examples of chromosomal disorders?

Chromosomal disorders:

1. Chromosomal disorders are caused by the absence, excess, or abnormal arrangement of 1 or more chromosomes.
2. They can be studied by the analysis of karyotypes.
3. Karyotypes are organized profiles of a person's chromosomes according to shape, size, and number.

Examples of chromosomal disorders:

1. Down's syndrome - It occurs due to the presence of an additional copy of chromosome 21.
2. Turner's syndrome - It occurs due to the absence of one of the X chromosomes.
3. Kleinfelter's syndrome - It occurs due to the presence of an additional copy of the X chromosome resulting in either XXY or XXX.