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What is the difference between Turner syndrome and mosaic Turner syndrome?
However, some girls with Turner syndrome have a full or partial absence of the X chromosome in only some of their cells. When an individual has a different chromosomal content in his/her cells, it is called mosaicism. … Mosaic Turner syndrome, like Turner syndrome, is not typically inherited .
How common is mosaic Turner syndrome?
Turner syndrome is a genetic condition found in females only. It affects about 1 in every 2,500 girls. Girls who have this condition usually are shorter than average and infertile due to early loss of ovarian function.
How does mosaic Turner syndrome occur?
Mosaic Turner syndrome is also not inherited. In an affected individual, it occurs as a random event during cell division in early fetal development. As a result, some of an affected person's cells have the usual two sex chromosomes, and other cells have only one copy of the X chromosome.
Is Turner syndrome caused by mother or father?
Most people are born with two sex chromosomes. Boys inherit the X chromosome from their mothers and the Y chromosome from their fathers. Girls inherit one X chromosome from each parent. In girls who have Turner syndrome, one copy of the X chromosome is missing, partially missing or altered.