Question

what is a recessive trait? a trait that is beneficial to a species a trait that is always expressed over other traits a trait that is only expressed when two copies of the matching allele are present a trait that is disadvantageous to a species

Explanation:

In genetics, a recessive trait is masked by a dominant trait and is only expressed when an individual has two copies of the recessive allele.

Answer:

C. A trait that is only expressed when two copies of the matching allele are present