Alexis Smith - Genetics Practice Problems (simple)

Name :________________________________________________ Genetics Practice Problems 1. For each genotype below, indicate whether it is heterozygous (He) or homozygous (Ho) AA _____ Ee _____ Ii _____ Mm _____ Bb _____ ff _____ Jj _____ nn _____ Cc _____ GG _____ kk ____ OO _____ Dd _____ HH _____ Ll ____ Pp _____ 2. For each of the genotypes below determine what phenotypes would be possible. Purple flowers are dominant to white Brown eyes are dominant to blue PP _____________ BB ___________ Pp _____________ Bb ____________ pp ______________ bb _____________ Round seeds are dominant to wrinkled Bobtails are recessive (to long tails) RR ______________ TT ____________ Rr ______________ Tt ____________ rr _______________ tt _____________ 3. For each phenotype below, list the genotypes (remember to use the letter of the dominant trait) Straight hair is dominant to curly Tail spikes are dominant to plain tails _____ straight ____ spikes _____ straight ____ spikes _____ curly ____ plain 4. Set up the Punnet squares for each of the crosses listed below. Round seeds are dominant to wrinkled . Rr x rr Rr x Rr RR x Rr What percentage of the offspring will be round? _________ What percentage of the offspring will be round? _______ What percentage of the offspring will be round? _______