Patterns of Inheritance
A homozygous brown mink was crossed with a silverblue mink. Brown (B) is dominant to silverblue. There were 9 offspring. What color were they? (B) Two of the offspring were mated. What would the ratio of brown to silverblue offspring be? What fraction of the offspring will be homozygous brown? Heterozygous? Homozygous recessive?
Let B represent the allele for brown color and b represent the allele for silver blue
Punnet square between homozygous brown mink and silver mink homozygous brown mink X Silver mink bb X BB
All the 9 offspring were brown
Mating two of the offspring Punnet square showing f1 generation will be as follows Bb X Bb Ratio of brown to silverblue is 3: 1 Fraction of homozygous ...
