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charle [14.2K]
3 years ago
12

A red bull is crossed with a white cow and all of the offspring are roan, an intermediate color that is caused by the presence o

f both red and white hairs. this is an example of alleles that are
Biology
1 answer:
Dmitrij [34]3 years ago
3 0
The intermediate color or rather condition, in this case "roan", is a result of two alleles being codominant. Codominance occurs when the phenotype (or the physical expression of the gene) of a heterozygote individual expresses both the alleles in a pair of genes. In the given situation, both parents are homozygotes. 
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