If a rose exhibits intermediate inheritance, what offspring would you expect to be produced from a cross between a red and yellow rose? Show the genotypes and be sure to use the correct notation. Draw a Punnett square to show a cross between two F1 roses and analyze the results.

If a rabbit exhibits codominance (the heterozygote expresses BOTH traits), what results would you expect from a cross between a gray rabbit and a white rabbit? Write the genotypes and phenotypes of each parent and the offspring.

Multiple alleles (more than 2) are present in the human population for blood type resulting in 3 blood types: A, B, and O. The alleles are IA, IB, and i. IA and IB are codominant and, IA and IB are both dominant over i. The genotype ii results in Type O blood. If a man with type AB blood marries a woman with type O blood, what blood types may be seen in their children? Draw a Punnett Square to show your answer.

Draw a Punnett square to show the possible blood types of the children of a man who is heterozygous for type A blood and a woman who is heterozygous for type B blood.

Polygenic traits are determined by more than one allele pair. If the darkest skin color results from the genotype AABBCC and the lightest skin color results from the genotype aabbcc, how would you compare the skin color of the people with these two genotypes:

Person 1: AaBbCc
Person 2: AABbCC

Rebecca inherited an allele for red hair and an allele for freckles from her Mom. These two alleles are on the same chromosome and are called linked genes because they are more likely to be inherited together. Rebecca also inherited an allele for brown hair and an allele for no freckles from her Dad. Draw the two homologous chromosomes that she inherited and label the genes.

When Rebecca’s body produces gametes, is it possible for any of her gametes to contain an allele for red hair and no freckles? Explain why or why not.

A gene located on a sex chromosome (usually the X) is called a sex-linked (or X-linked) gene. Women have two X chromosomes, but men have only one X chromosome. Write the genotype of a woman who carries a recessive allele for colorblindness.

Write the genotype of a man with normal color vision.

Draw a Punnett square to show the probability of their children being colorblind.