One true-breeding line of mice is obese and dark, and the other true-breeding line is lean and light. dark is dominant to light, but obese and lean exhibit incomplete dominance. the two genes involved are on separate chromosomes. what proportion of offspring from a dihybrid cross should be dark and obese?

Let us denote the color traits with 'D' for dark and 'd' for light. The dark color is dominant over the light color. The body weight traits, obese and lean are 'x' and 'y', respectively. Since the body weight traits show incomplete dominance over one another, they have been labelled separately. The mice with a pure line of dark-obese trait will have the 'DDoo' genotype. The mice with a pure line of light-lean trait will have the 'ddll' genotype. The resulting hybrid of the two types of mice is shown in image 1. The image 2 shows the cross between the hybrids of image 1. The proportion of offspring that will be dark and obese in the final cross between the hybrids will be, 3 (yellow) out of 16.

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.