How can a genetic disorder such as Turner's syndrome, occur?

1 Answer

An affected person's cells have the usual two sex chromosomes, and other cells have only one copy of the X chromosome.

Explanation:

The turner syndrome is also not inherited disease, but appeared due to disorders in the chromosomes in the cell division.
It occurs as a random event during cell division in early fetal development.
An affected person's cells have the usual two sex chromosomes, and other cells have only one copy of the X chromosome.