This trait is controlled by a single locus gene with incomplete dominance. What would be the genotype and phenotype ratios of the offspring if a blue wildcat were crossed with a purple one? Show all work.

The results of a test cross of a fruit fly that is heterozygous for three traits encoded by the genes E, D, and A summarized below. You can see numbers of offspring that inherited each combination of alleles from heterozygous parent. Use this data to calculate a frequency of recombinations and to make a map. 131 eda eDA 1779 Eda 1654 EdA 13 EDa 241 EDA 118 edA 252 eDa 9 total: 4197

Four coat color phenotypes occur in mice, Cream (C), Brown (R), Gray (G) and Black (B). Use the following crosses to determine the dominance sequence of the alleles and indicate the parental genotypes. Cross Parent Phenotype |Offspring Parental Genotypes Gray X Black 10 Gray 2 Black X Cream 5 Black, 5 Brown 3 Brown X Brown 7 Brown, 3 Cream 4 Gray X Brown 5 Gray, 5 Black

Please read the scenario below, and then answer the question (in bold) that follows. In cats, the allele (B) produces a black coat color and the allele (b) produces a yellow coat color. These alleles are incompletely dominant to each other. A heterozygote produces a tortoise shell coat color. The alleles (B) and (b) are also sex-linked (i.e., they are carried on the X chromosome), and cats possess an XX-XY sex determination system, like humans. If a female cat with a tortoise shell coat mated with a male cat who had a yellow coat... What percentage of their offspring will have tortoise shell coats?   a. 0%   b. 25%   c. 50%   d. 75%   e. 100%