What are sex linked genes?
Genes on the 23rd pair (Color-blindness)
Sex-linked genes are genes that are located on either the X or Y chromosome. These genes are responsible for traits or characteristics that are determined by the sex chromosomes. In humans, females carry two X chromosomes, while males carry one X and one Y chromosome. Therefore, sex-linked genes typically exhibit different inheritance patterns in males and females.
Traits that are controlled by genes located on the X chromosome are called X-linked traits, while those controlled by genes located on the Y chromosome are called Y-linked traits. X-linked traits tend to be more common and well studied, as they are present in both sexes and can affect males and females differently.
Some examples of X-linked traits include color blindness, hemophilia, and Duchenne muscular dystrophy. These conditions are more common in males, as they only inherit one X chromosome and therefore do not have a second copy to compensate for any mutations or abnormalities. Females, on the other hand, typically have two copies of the X chromosome and may not exhibit symptoms of X-linked traits unless they inherit two copies of the mutated gene.
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