Dominant

{
  "id": "MLC-T-CHM-003374",
  "term": "Dominant",
  "field": "Chemistry",
  "definition": "Describing an allele or a trait that is expressed phenotypically even when only one copy of the allele is present in a heterozygous individual. In toxicology, a dominant genetic effect manifests when exposure to a substance causes a harmful phenotype in heterozygotes. This contrasts with recessive traits, which require two copies of the allele for expression.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "recessive"
  ],
  "references": [
    "PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 745 (https://doi.org/10.1515/pac-2015-1202)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dominant/"
}