Human traits controlled by multiple alleles are called multiple-allele traits. One widely known example is ABO blood type, which is controlled by 3 alleles.
The black coat allele will be represented as the capital letter over the lowercase letter in guinea pigs. When crossing, you get 25% for homozygous dominant, 50% for heterozygous dominant, and 25% for homozygous recessive.
I’m sorry i don’t understand this
