Search Dictionary



Version history

  • Current: Nov 14, 2023

Transition

In biology, transition refers to a type of mutation in which a purine (A, G) is replaced by a different purine or a pyrimidine (C, T) is replaced by a different pyrimidine. It is a type of base substitution mutation.


Definitions in the literature

  • Base substitution in which a purine is replaced by a different purine or a pyrimidine is replaced by a different pyrimidine [1].