Structured Summary
Abstract
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
MeSH Record
Classification
Broader headings
Narrower headings
- A-Form DNA
- Algal DNA
- Ancient DNA
- Antisense DNA
- Archaeal DNA
- B-Form DNA
- Bacterial DNA
- C-Form DNA
- Catalytic DNA
- Circular DNA
- Concatenated DNA
- Cruciform DNA
- DNA Adducts
- DNA Transposable Elements
- Environmental DNA
- Extrachromosomal DNA
- Fungal DNA
- Helminth DNA
- Intergenic DNA
- Isochores
- Neoplasm DNA
- Plant DNA
- Protozoan DNA
- Recombinant DNA
- Retroelements
- Ribosomal DNA
- Satellite DNA
- Single-Stranded DNA
- Viral DNA
- Z-Form DNA
Related Concepts
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MeSH Record
See Also
MeSH Record
Synonyms
6 entry terms
- Deoxyribonucleic Acid
- DNA, Double-Stranded
- ds-DNA
- DNA, Double Stranded
- Double-Stranded DNA
- ds DNA
MeSH Record
Aspects Covered
29 allowable subheadings
Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.
MeSH Record
Indexing Annotation
general; prefer specifics; /biosyn permitted but consider also DNA REPLICATION; structural DNA models = DNA (IM) + MOLECULAR MODELS (IM)
MeSH Hierarchy
Tree Number
MeSH Record
NLM Classification
QU 58.5
AMA Style
References
- National Library of Medicine. DNA. Medical Subject Headings (MeSH). 2026. Unique ID D004247. http://id.nlm.nih.gov/mesh/2026/D004247
- DNA. In: Wikipedia. https://en.wikipedia.org/wiki/DNA
- DNA. In: Wikidata. https://www.wikidata.org/wiki/Q7430