No, it cannot because codominance is the expression of both alleles coming forth from each parent. One parent would be R(A)R(A) and the other parent would be R(B)R(B). Their offspring would only be able to be R(A)R(B). They could not be homozygous.
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The answer is A because there is only one parent so the offspring gets all that parents genetic traits
A
mid ocean ridges occur along divergent plate boundaries
