Solving Sex-Linked Punnett Squares

New Trait Chart  Since gender matters in sex-linked punnett squares, a new trait chart is needed.

Homozygous Dominant Female XBXB Dominant Female Genotype Phenotype Homozygous Dominant Female XBXB Dominant Female Heterozygous Female XBXb (carrier) Homozygous Recessive XbXb Recessive Female Dominant Male XBY Dominant Male Recessive Male XbY Recessive Male

Practice Problem One A disorder called rickets is a sex-linked recessive. A carrier woman has a child with a normal man.

Practice Problem 2 A man with rickets has a baby with a woman who is homozygous dominant.