1. having two different alleles of a particular gene or genes
Usage: biology; genetics

Examples

• The plant was heterozygous for flower color, carrying both red and white alleles.
• Heterozygous individuals often display the dominant trait.
• In genetics class, we learned that Aa represents a heterozygous genotype.
• The cross between two heterozygous parents produced a 3:1 ratio.
• Being heterozygous for this gene provides resistance to the disease.
• The heterozygous condition can mask recessive traits.