Transversion seen in
SubstitutionReplacement of a purine by another purine (A to G or G to A) or pyrimidine by pyrimidine(T to C or C to T) is called transition mutation. If purine is changed to a pyrimidine (A to C) or a pyrimidine to a purine(T to G), it is called a transversion mutation.Ref: Textbook of biochemistry ( DM Vasudevan), 6th edition, page no. 612
Guanine - cytosine
Guanine - adenine
Guanine - thymine
Adenine - thymine
Metabolism of protein and amino acid