Phenomena and Processes

Genetic Polymorphism

The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.

MeSH Record

Classification

Broader headings

Narrower headings

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MeSH Record

Synonyms

9 entry terms
  • Gene Polymorphism
  • Genetic Polymorphisms
  • Polymorphism (Genetics)
  • Polymorphism, Genetic
  • Gene Polymorphisms
  • Polymorphism, Gene
  • Polymorphisms (Genetics)
  • Polymorphisms, Gene
  • Polymorphisms, Genetic

MeSH Record

Aspects Covered

5 allowable subheadings

Indexed with the subheadings drug effects, genetics, immunology, physiology, radiation effects.

MeSH Record

History Note

2005(1968)

MeSH Record

Previous Indexing

  • Genetics (1966-1967)
  • Genetics, Population (1966-1967)

MeSH Hierarchy

Tree Number

  1. G05.365w.795w

MeSH Record

NLM Classification

QU 477

AMA Style

References

  1. National Library of Medicine. Genetic Polymorphism. Medical Subject Headings (MeSH). 2026. Unique ID D011110. http://id.nlm.nih.gov/mesh/2026/D011110
  2. Genetic Polymorphism. In: Wikipedia. https://en.wikipedia.org/wiki/Gene_polymorphism
  3. Genetic Polymorphism. In: Wikidata. https://www.wikidata.org/wiki/Q3395645