Medical Subject Headings

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/MESH/D020137
http://purl.bioontology.org/ontology/MESH/D020137
Preferred Name

Base Pair Mismatch

Definitions
The presence of an non-complementary base in double-stranded DNA (DNA mismatch) caused by spontaneous deamination of cytosine or adenine, mismatching during homologous recombination, small insertions or deletions, or errors in DNA replication. Multiple, sequential base pair mismatches lead to formation of heteroduplex DNA; (NUCLEIC ACID HETERODUPLEXES).
Synonyms
Mismatch, Base Pair
Base Pair Mismatches
Mismatches, Base Pair
Type http://www.w3.org/2002/07/owl#Class
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