1. Genetics Practice

2. Incomplete Dominance In carnations, red and white phenotypes have homozygous genotypes. The heterozygous genotype makes a pink phenotype. Cross a red carnation with a pink carnation. What percent of the offspring will be pink?

3. Codominance In cattle, roan coat color (red and white hairs) occurs in heterozygotes. Cross a white cow with a roan cow.

4. Sex-Linked Colorblindness is a sex-linked recessive disorder. If a male that is color-blind marries a woman that is heterozygous, what are the possibilities for their offspring?

5. If a man without colorblindness marries a woman that is heterozygous, what is the likelihood that their sons will be normal?

6. Baldness is a sex-linked dominant condition. If a female who is not bald weds a man who is bald, what is the likelihood that they will produce a daughter that is not bald?

7. Multiple Alleles If a woman that is heterozygous type A blood weds a man who is heterozygous type B blood, what are the possible genotypes of their offspring?

8. A couple has two children—one has type A blood and the other has type O blood. What are the possible genotypes of the couple?