Which type of traits are neither dominant nor recessive but are a combined variation of both? a. codominant traitsb. heterozygous traitsc. polygenic traitsd. sex-linked traits

The answer would be a) co-dominant traits.

tip: co-dominance is when both a dominant and a recessive allele are present, which creates offspring with both traits which results in a new phenotype and genotype. 

hopefully this helps :)

A) Codominant traits

Codominant traits happen when the trait being expressed is neither just the dominant trait or the recessive trait, but both traits at the same time, without any blending.

Remember that "co" means "together," like in cooperate (people working together). In co-dominance, the two alleles are displayed together.

The correct answer is a