Why do alleles of X linked genes behave as dominant alleges in human males

X-linked recessive inheritance is a mode of inheritance in which a mutation in a gene on the X chromosome causes the phenotype to be always expressed in males (who are necessarily homozygous for the gene mutation because they have one X and one Y chromosome) and in females who are homozygous for the gene mutation, zygosity. X-linked inheritance means that the gene causing the trait or the disorder is located on the X chromosome.

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