Gujarati
5.Molecular Basis of Inheritance
normal

In a mutational event, when adenine is replaced by guanine, it is a case of

A

Transition

B

Transversion

C

Frameshift mutation

D

Transcription

(AIPMT-2004)

Solution

(a)In transition, a purine ($A$ or $G$) or a pyrimidine ($C$ or $T$ or $U$) in triplet code of $DNA$ or $mRNA$ is replaced by its type. i.e., a purine replaces purine and pyrimidine replaces pyrimidine.

Standard 12
Biology

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