Introduction: Sex chromosome conditions

Sex chromosome conditions: Chromosome diseases are genetic diseases where a large part of the genetic code has been disrupted. Chromosomes are long sequences of DNA that contain hundreds or thousands of genes. Every person has 2 copies of each of the 23 chromosomes, called chromosomes 1..22 (or "autosomes") and the 23rd is the sex chromosome, which is either X and Y. Men are XY and women are XX in the 23rd chromosome pair. Anamolies in the sex chromosomes cause various conditions.

See also articles Introduction to Genetics, Introduction to Chromosome Diseases, and Introduction to Genetic Diseases.

Conditions list: The list of conditions in the Sex chromosome conditions group includes:

• Turner Syndrome
• Klinefelter syndrome
• Jacobs syndrome
• Triple-X syndrome

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