HELP ASAP In shorthorn cattle, coat color may be red, white, or roan. In
roan cattle, their coats are a mixture
of red and
white hairs, although the
animals appear a light rust color from a distance. Show a cross between a
roan bull and a red cowe and give the expected genotype and phenotype.

A. radioactive dating

Ihaven't done that yet, so no idea,but this is not the right place to ask

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.