A gene or trait that appears or expresses itself over a recessive trait is called

it is called a dominant gene

Its called a dominant gene.

Explanation:

"A dominant gene, or a dominant version of a gene, is a particular variant of a gene, which for a variety of reasons, expresses itself more strongly all by itself than any other version of the gene which the person is carrying, and, in this case, the recessive."

looks like the answer is     c     to me!