A hornless bull is crossed with a horned cow. In the offspring 50% horned, 50% hornless. Why? Determine the genotype.
| April 6, 2021 | education
The presence of a horn is a dominant feature.
Genotype of hornless bulls: aa.
Genotype of horned cows: Aa (heterozygote, because otherwise, with the AA genotype, the offspring would not have turned hornless individuals).
Thus, the genotypes of the offspring: Aa (there is a horn) – 50% and aa (no horn) – 50%.
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