Home > A. Molecular pathology > transition
transition
Monday 13 March 2006
In genetics, a transition is a mutation changing a purine to another purine nucleotide (A < -> G) or a pyrimidine to another pyrimidine nucleotide (C < -> T).
Approximately two out of every three single nucleotide polymorphisms (SNPs) are transitions.
See also
transversion
DNA mutations
DNA damage (DNA lesions)
