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  1. In a mutational event, when adenine is replaced by guanine, it is a case of
    1. frame shift mutation
    2. transcription
    3. transition
    4. transversion
Correct Option: C

In transition substitution a purine is replaced by another purine base (A with G or vice versa). In transversion substitution a purine is replaced by a pyrimidine base or vice versa. Frameshift mutation is a type of mutation where the reading of codons is changed due to insertion or deletion of nucleotides. Transition is the formation of RNA over the template of DNA.



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