Red coat is dominant in horses and white coat is recessive. In a cross between a homozygous dominant red-coated horse and a white-coated horse, what genotype(s) would be observed in the offspring?
A) all homozygous recessive
B) all homozygous dominant
C) half homozygous dominant and half homozygous recessive
D) all heterozygous
E) half heterozygous and half homozygous dominant

Question

Red coat is dominant in horses and white coat is recessive. In a cross between a homozygous dominant red-coated horse and a white-coated horse, what genotype(s) would be observed in the offspring?​
A) ​all homozygous recessive
B) ​all homozygous dominant
C) ​half homozygous dominant and half homozygous recessive
D) ​all heterozygous
E) ​half heterozygous and half homozygous dominant

Quizplus · Accepted Answer

In this cross, the homozygous dominant red-coated horse (RR) would pass on a dominant allele (R) and the white-coated horse, being recessive, would pass on a recessive allele (r) to all offspring, resulting in all offspring being heterozygous (Rr) with a red coat.

Red Coat Is Dominant in Horses and White Coat Is