The eye color brown is superior to blue. Linda has brown eyes and marries someone with blue eyes. Linda's father has blue eyes and her mother is homozygous dominant. What is the percent chance of Linda's children having blue eyes?

Sharon has blonde hair. Her husband is heterozygous for brown hair, with brown being the dominant autosomal trait. What percent chance will their daughter have blonde hair?

The trait "tall" is dominant (T) while "short" is recessive (t). If two parents are both heterozygous for the trait and have a child, what is the probability that the child would be phenotypically short?

Consider a rare plant that exhibits the phenotype of dark blue leaves (BB) as its dominant trait and and light blue leaves (bb) as its recessive trait. It flowers a bright yellow flower (YY) when dominant, and an orange flower (yy) when recessive.

When two dihybrid plants of the same species are crossed, what will be the expected phenotypic ratio of offspring that exhibit light blue leaves and yellow flowers?

Two pure breeding plants are crossed. One has purple flowers and the other has white flowers. The first generation is composed of only purple flowers. When the first generation is self pollinated, there is a 3 to 1 ratio of purple to white flowers in the second generation.

What percentage of the second generation has a heterozygous genotype?

In a fictional rabbit there is a gene allele that controls whether its tongue is keratinized—K—or not—k. A rabbit with the genotype of either KK or Kk has a keratinized tongue. A rabbit with the genotype of kk has a non-keratinized tongue. If a heterozygous male and female rabbit mate, then what is the probability that their offspring will be heterozygous for the gene that controls for tongue keratinization?

Consider two traits in pea plants that exhibit complete dominance. Smooth peas are dominant to wrinkled peas, and purple flowers are dominant to white flowers.

A pure breeding plant with purple flowers and wrinkled peas is crossed with a pure breeding plant with white flowers and smooth peas. The first generation is self-pollinated to produce the second generation.

What fraction of the second generation will have purple flowers with wrinkled peas?

In a population of fruit flies the allele for large wings is dominant over the allele for small wings. Two heterozygous parents are crossed and produce sixteen offspring. How many of these offspring will have large wings?

Red and white are two alleles of a single gene for flower color. A red plant and a white plant are crossed. Some offspring have red flowers and some offspring have white flowers. Which of the following could not be true?

For a monohybrid cross of a gene that exhibits complete dominance, what will be the expected ratios for the phenotype and genotype?