NCI Dictionary of Genetics Terms
The NCI Dictionary of Genetics Terms contains technical definitions for more than 200 terms related to genetics. These definitions were developed by the PDQ® Cancer Genetics Editorial Board to support the evidence-based, peer-reviewed PDQ cancer genetics information summaries.
- double heterozygosity
- listen (DUH-bul HEH-teh-roh-zy-GAH-sih-tee)
- The presence of two different mutated alleles at two separate genetic loci.