Which type of genetic variation is shown below?
A) Codominance
B) Incomplete dominance

The answer would be A) Codominance
Incomplete dominance would be when the two colors mixed together (that would make the fish purple) and codominance is when two colors "dominate" instead.
In the given diagram, codominance is shown.
A relationship between the two versions of a gene is termed codominance. Generally, the individuals get one version of a gene known as allele from each of the parent. If the alleles are distinct, the allele, which is dominant would get expressed, however, the effect of the other allele, that is, recessive gets masked.
However, in codominance, neither of the allele is recessive, and the phenotypes of both the alleles get expressed. Therefore, in codominance, neither of the allele can hide the expression of the other one. For example, in the given figure, the offspring is exhibiting phenotype of both the parents, thus, it is showing codominance.
Thus, the correct answer is codominance.
Find out more information about codominance here:
https://brainly.com/question/17465340