Chapter 14 & 15 Worksheet

BSC 2010 – Neda

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a).A mother with the genotype Aa and a father with the genotype Aa produce an offspring.What is the percent chance that the offspring will have NO belly fur?

In horses, the allele for straight hair (H) is dominant, and the allele for curly hair (h) is recessive.A horse breeder mates a homozygous dominant mother with a heterozygous male.What is the chance that the offspring will have straight hair?

In mussels, brown coloring (B) is dominant, and blue coloring (b) is recessive.A homozygous brown mussel crosses with a blue mussel.What percentage of offspring are expected to be blue?

2 parents have brown eye. They have a 25% chance of having a child with what genotype and what phenotype?

A Woman that is AB+ , whose dad was B- marries a man that is A and homozygous positive. What is the probability that if they have a daughter, she will be the A+ phenotype?

Colorblindness is a sex-linked recessive trait. A man who is genotypically normal marries a woman that is a carrier. What is the probability of any child being genotypically normal?

If a calico female mates with a black male cat, what are the possible colors of the kittens