When the effects of genes combine to create the phenotype,they are called "_____ genes."

A) dominant
B) recessive
C) additive
D) nonadditive

Additive Genes

Genes that contribute incrementally in varying degrees to the phenotype of an organism.

Dominant

Refers to a trait that overshadows another when both are present, or an individual/group that exerts power over others in a given context.

Recessive

Describing a gene that is expressed in the phenotype only when two copies of the gene (one from each parent) are present.