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What chromosome determines the sex of an organism?

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What chromosome determines the sex of an organism?

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sex chromosome

A sex chromosome is a chromosome that determines the sex of an organism. Humans have two sex chromosomes, X and Y . Females have two X chromosomes   XX  , and males have one X and one Y chromosome   XY  . An autosome is any chromosome other than a sex chromosome. If a trait is autosomal it will affect males and females equally.

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