Question

When one allele is dominant and one is recessive, heterozygote fitness is equal to that of the dominant homozygote. However, other more complex scenarios may occur:

Answer 1

Dominant alleles are expressed in individuals with a heterozygous genotype, making them phenotypically identical to individuals with a homozygous dominant genotype.

Step-by-step explanation:

In genetics, the terms dominant and recessive are used to describe the expression of traits. When one allele is dominant and one is recessive, individuals with a heterozygous genotype (having one dominant and one recessive allele) will exhibit the dominant trait. Their fitness is equal to that of individuals with a homozygous dominant genotype. This means that individuals with a heterozygous genotype will have the same phenotype as individuals with a homozygous dominant genotype.