MCAS Biology Practice

Category - Biology

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Female cattle that have white coats are crossed with male cattle that have red coats. Both male and female offspring have roan coats, which are coats with both red hairs and white hairs.Which of the following best describes the genetics of coat color in the cattle?

The red and white alleles are sex-linked.
The red and white alleles are codominant.
The red allele is recessive to the white allele.
The red allele is dominant to the white allele.

Explanation

Answer: B - The red and white alleles are codominant.

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