noun, plural: transversions
(genetics) A base-pair substitution mutation in which a purine is replaced by pyrimidine (e.g. A → C), and vice versa (e.g. T → G)
In terms of functionality this mutation can lead to a missense mutation. Transversions can be caused by ionizing radiation and alkylating agents.
To view a study on thymine to guanine transversion, view this article.
Compare: transition (genetics)
See also: substitution mutation