In horses, the allele for a black coat (B) is dominant over the allele for a brown coat (b). A cross between a black horse and a brown horse produces a brown foal. Is the black horse a hybrid or a purebred? Explain.

Hybrid

Explanation:

The horse will present itself as black, but still have the brown gene in its DNA because Brown is a recessive trait. Its genotype is Bb

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

idk and i also need to know where are those bio brainy acts lol