Other tests revealed a rare chromosomal condition that could have led to severe retardation and death.

Diagnostic testing: Diagnostic testing is used to diagnose or rule out a specific genetic or chromosomal condition.

Turner syndrome is a chromosomal condition that alters development in females.

Greig cephalopolysyndactyly syndrome is a chromosomal condition related to chromosome 7.

Smith-Magenis syndrome is a chromosomal condition related to chromosome 17.

As a chromosomal condition, there is no cure for Turner syndrome.

T21, an acronym for Down Syndrome, a chromosomal condition caused by the presence of all or part of an extra 21st chromosome.

Unlike most other chromosomal conditions (such as Down syndrome), there is usually no distinguishable difference to the naked eye between women with triple X and the rest of the female population.

In some affected individuals, only a percentage of cells may contain the chromosomal condition (mosaicism).

This is a chromosomal condition that is found in approximately 1 of every 2,500 live female births.