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Sex-Linked Traits

Sex-Linked Traits. Sex-Linked = conditions carried on the sex chromosomes (X and Y). Sex-Linked Traits. Examples: Colorblindness, hemophilia… X-linked = males will NEVER be a carrier “carrier” = has the gene, but doesn’t show the trait. Colorblindness (c) is a recessive, X-linked trait

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Sex-Linked Traits

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  1. Sex-Linked Traits • Sex-Linked = conditions carried on the sex chromosomes (X and Y)

  2. Sex-Linked Traits • Examples: Colorblindness, hemophilia… • X-linked = males will NEVER be a carrier • “carrier” = has the gene, but doesn’t show the trait Colorblindness (c) is a recessive, X-linked trait XCY = Normal male XCXC = Normal female XCXc = Carrier female XcXc = colorblind female XcY = colorblind male

  3. Sex-Linked Traits • Cross a carrier female with a colorblind male:

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