Answer:
Women have two x chromosomes, compared to men who have one x and one y chromosome.
Explanation:
Because of the two x chromosomes, one of them can override the other. In men they only have one x and one y, they don't have the extra x chromosome to override the allele.
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Answer:
Since women have two X chromosomes, one of them is dominant over the other. That means that if one X chromosome has a certain trait given by an allele, it might not show up because another trait given by the dominant allele overrides it.
In men this isn't possible since they only have one X and one Y chromosome, so any trait given by an allele cannot be dominated by its corresponding allele pair, since there is no corresponding allele pair.
Explanation:
