Since males have only one X chromosome,the allele frequency of an X-linked trait is equal to the number of males with the recessive phenotype.

Question

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The allele frequency of an X-linked trait is equal to the number of males with the recessive phenotype because males only have one X chromosome, so if they have the recessive allele, they will express the recessive phenotype.

Since Males Have Only One X Chromosome,the Allele Frequency of an X-Linked