heterozygous
This term is a precise technical descriptor used in genetics to identify an organism that possesses two distinct versions of a specific gene. It carries a neutral, scientific connotation and is used exclusively within biological and medical contexts to describe the genetic makeup of an individual at a specific locus.
In practical application, the term is often contrasted with homozygous. While homozygous implies genetic uniformity, heterozygous indicates genetic diversity, which frequently results in the masking of recessive traits by dominant ones, a concept central to Mendelian inheritance.
Meanings
Having two different alleles of a particular gene or genes.
The plant is heterozygous for the trait of flower color.
Examples
He is heterozygous.
It is heterozygous.
The researcher noted that the subject remained heterozygous throughout.
Historical data suggests the population was largely heterozygous.