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Genetics and Genomics

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Sex-Linked Traits: X-Linked Recessive Traits

GENES-4NPOYH

Sex linkage is expressed as the phenotype seen due to the inheritance of alleles on the sex chromosome of the individual.

X-linked recessive traits are expressed in all

individuals that possess the recessive allele, but are only expressed in those

individuals that carry the recessive allele on both chromosomes.