Codominance occurs when
genes are neither recessive nor dominant
O two genes are equally recessive
O two genes are equally dominant
O genes are linked with the X or Y chromosome

two genes are equally dominant.

Explanation: codominance is a phenomenon in which two genes are able to express themselves phenotypically in an equal proportion in an organism. For instance, a gene for black fur (B) in cattle is dominant and the gene for white fur (W) is also dominant, a cattle that inherited the two genes will have black and white fur mixed together in equal proportion. This is known as codominance.