Sex Linked Alleles Flashcards
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
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
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
