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Sign in to savethumb|right|300px|Illustration of a transversion: each of the 8 nucleotide changes between a purine and a pyrimidine (in red). The 4 other changes are Transition (genetics)|transitions (in blue).
thumb|right|300px|Illustration of a transversion: each of the 8 nucleotide changes between a purine and a pyrimidine (in red). The 4 other changes are Transition (genetics)|transitions (in blue).