Problem:

Question 1: Consider the gene A, which has two alleles, A and a. List all possible monohybrid crosses for this pair of alleles (including boring ones like AA x AA), and diagram the Punnet square for each cross.

Question 2: In progeny of the cross Aa Bb Cc x aa Bb cc, how many will be A_ B_ C_? How many different types of gametes can be produced by each parent?

Question 3: In fruit flies (Drosophila melanogaster), the bn+ allele for normal dull red eyes is dominant to the bn allele that gives brown eyes. Another gene affects wing shape; for this gene, the ct+ allele for normal wings is dominant to the ct allele, which gives "cut" wings, with jagged edges. A fly with dull red eyes and normal wings was crossed with a fly that had dull red eyes and cut wings, and the following progeny were obtained: 16 dull red eyes, normal wings 14 dull red eyes, cut wings 5 brown eyes, normal wings 5 brown eyes, cut wings What were the genotypes of the parents?