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level: 17.6 Sex-linkage

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level questions: 17.6 Sex-linkage

QuestionAnswer
Sex linkage- When an allele is on the X chromosome but not the Y chromosome
KEY IDEA - 2 marker- Males are more likely to inherit a sex linked characteristic because if an allele is on the X chromosome it will always be expressed - A female can be heterozygous for a condition = if the allele is recessive it will not be expressed