Sex-linked Inheritance Flashcards
Prevalence of some disorders is linked to _
Biological sex
Disorders influenced by genes carried on the _ often less prevalent in women
X chromosome
Disorders influenced in genes carried in X chromosome less prevalent in women because women have
2 X chromosomes
Second X chromosome, with dominant allele, overrides first when _
Faulty
(Less likely to get X chromosome disease)
Since men only have one X chromosome, son carrying faulty gene will _
Exhibit the disorder
_ is recessive trait on X chromosome
Color blindness
Color blindness can be carried, but not present when _ is present
Dominant allele for full color vision
When dominant full color allele is not present, but _ is, child is color blind
Recessive color blind allele
Women need _ to be colorblind
Both XX to have recessive allele
Men need _ to be colorblind
Only X out of XY
(Colorblind not applicable to Y)
Color blindness effects 1 of 12 men but _ women
1/200
