Calculate genotypes and phenotypes in sex-linked, sex-limited and sex-influenced traits.
In some sheep, horns are produced by an autosomal allele that is dominant in males and recessive in females. A horned female is crossed with a hornless male. One of the resulting F1 females is crossed with a hornless male. What proportion of the male and female progeny from this cross will have horns?
Group of answer choices
100% horned males, 50% horned females
50% horned males, 50% horned females
50% horned males, 100% hornless females
100% horned males, 100% hornless females