Question

A point mutation where guanine is replaced by cytosine is also called

• A. Frame shift mutation
• B. Transition mutation
• C. Translocation mutation
• D. Transversion mutation

Answer 1

Answer: (D)

Transversion mutation

The base pair mutations are the most common type of mutations. These can be further categorised into two types.
(i) Transitions: i.e., in which a purine base is replaced by another purine and pyrimidine is replaced by another pyrimidine.
(ii) Transversion, i.e., those in which a purine (guanine) is replaced by a pyrimidine(cytosine) and vice-versa.

So, the correct answer is option D.