Science Help?! 10 points!?

There are more known genes controlling coat color in mice than any other feature, so what you are learning is a simplification. The trouble is, we don't know how far they have simplified it for you. What information are you given? If they tell you, for example, that black is dominant, then all the offspring of zygous-black to zygous-yellow will be heterozygous (but appear black.) By the way, the straight zygous yellow genotype is always prenatally lethal.