Sex Linked Alleles Flashcards

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1
Q

What is meant by sex linkage

A

Where an allele is located on one of the sex chromosomes, meaning its expression depends on the sex of the individual

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2
Q

Why are males more likely to express a recessive sex linked allele

A
  • Alleles coated on X chromosome
  • males only need one copy of recessive allele ware as females need 2
  • females must be homozygous
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3
Q

Which parent do males inherit sex linked characteristic from

A
  • Their mother since the Y chromosome only comes from the father
  • mother is heterozygous for sex linked alleles
  • she is a carries and may pass on trait
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