1. some mice are light-colored, and some mice are dark-colored. use the words dna, trait, and
mutation to explain how this happens.

Body colour of mice depends on the gene of the mice.

Body colour is a character of mice, and it has different traits like light coloured and dark coloured. The body colour is formed because of the specific genes present in their DNA, which is present in chromosomes. The wild variety of the body colour is dark coloured, while the mutated variety of the body colour is light colored. As the mutations are usually recessive over the wild varieties, so the dark colour is dominant over the light coloured.

So when a pure dark coloured mice is crossed with a purely light coloured mice, the offsprings are all dark coloured.

i don't know. the other person does though.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.