Which is true regarding all x-linked disorders?
group of answer choices

they result in a longer lifespan

they are caused by mutations of the x chromosome

they are linked to an unknown chromosome

they are disorders that affect only women

they are caused by mutations of the X chromosome

Explanation:

The X chromosome contains many genes in addition to those that determine sex. Certain hereditary defects determine by recessive genes are linked to the X chromosome. The disorders are caused by mutations of the X chromosomes.

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