a homozyguos curved-horned stallion is crossed with a spiral-horned mare.

What is the mare’s genotype (with respect to her horn)?

What proportion of the offspring will have a heterozygous genotype? (Percentage)
What proportion of the offspring will have a homozygous genotype? (Percentage )
What proportion of the offspring will have a curved horn phenotype?
What proportion of the offspring will have a spiral horn phenotype?