Sex-Linked traits/disorders

Updated: April 18th, 2024

Bob is color blind, but he knows neither of his parents are color blind. Did the mother, father, or both parents give him the gene?

mother was a carrier (XB, Xb)

which parent determines sex of a baby? The mother, father, or both?

father: can either contribute a Y or X chromosome, depending on the gamete

what is Huntington’s Chorea caused by?

dominant allele

if 2 Huntington’s Chorea sufferers had children, what is the percentage that they would get the disease?

75% (HH, Hh, Hh, hh)