Possessing different genes from each parent for a particular trait.
A genetic characteristic containing a dominant and recessive gene.
Having two or more different versions of a specific gene.
Having two different alleles of a gene at corresponding loci (sites) on homologous chromosomes. A person heterozygous for a given trait inherits one allele from each parent, and the dominant allele usually manifests itself.
Describing an individual in whom the members of a pair of genes determining a particular characteristic are dissimilar.
Possessing different alleles at a given locus.
The progeny that arises from mating two pure but distinct strains.