The gene for black color in cattle dominates over the gene for red color. What offspring can be obtained from crossing heterozygous cattle?
According to the conditions of the problem:
A – black color of cattle;
a – red color of cattle.
Both parents are heterozygous for this trait. Accordingly, we get:
R: Aa * Aa;
G: A, a, A, a;
F1: AA – black color of cattle, 2Aa – black color of cattle, aa – red color of cattle.
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