1. Problems

2. Codominance
Horse’s coat color is an example of a trait that is inherited through codominance. The genotypes are: RR – red hair; RR’ – roan coat; R’R’ – white hair.
Predict the genotypic and phenotypic ratios of the offspring in which a roan coated horse is crossed with a white coated horse. Do a Punnett Square to illustrate your prediction.

3. Incomplete Dominance
Four o’clock flower color is an example of a trait that is inherited through incomplete dominance. The genotypes are: RR – red and WW – white; RW = pink.
Predict the genotypic and phenotypic ratios of the offspring in which a pink 4 o’clock flower is crossed with a red 4 o’clock flower. Do a Punnett Square to illustrate your prediction.

4. Go to www.biology.com for other problems