TS Is a Genetic Abnormality That Is Not Inherited
Turner Syndrome
By AdminBy J. E. Davidson
Turner Syndrome is a chromosomal condition first described by Dr. Henry Turner in the 1930’s. It affects only females, and is characterized by short stature and the lack of normal sexual development at puberty. Turner Syndrome (TS) affects one in 2,500 live female births and may account for up to 10% of all miscarriages.
TS Is a Genetic Abnormality That Is Not Inherited
The disorder occurs when the DNA is missing the second sex chromosome, or part of the second chromosome is missing. Females carry two X chromosomes in their genetic information, and males carry XY chromosomes. In Turner Syndrome, the female may have only one X chromosome; she may carry two X chromosomes with one only partially complete; or she may have a condition called mosaicism, in which some cells carry two X chromosomes while others carry only one.
TS is not believed to be an inherited genetic condition, but rather a random error that occurs during the formation of either the eggs or sperm of the parents. Since the male partner donates either an X or Y chromosome to the child’s DNA, and the mother always contributes an X chromosome, the abnormality may come from either parent. The condition may be diagnosed in utero, after delivery, or during the teen or adult years when signs are subtle. Since TS is a genetic abnormality, the quality of prenatal care does not affect the outcome.....more
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