Monday, November 16, 2009

Sex linked disorders and sex chromosomes disorders?

what is the difference between sex linked disorders and sex chromosomes disorders

Sex linked disorders and sex chromosomes disorders?
sex-linked disorders- genetic disorders caused by mutations in genes on the sex chromosomes (X and Y)


examples: hemophilia, color blindness, %26amp; different types of muscular dystrophy





sex chromosomes disorders- 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 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.


example: trisomy 21 (Down's Syndrome),
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