Question

Which of the following mutations would be classified as a transversion?

A) CGA to a CGU
B) CGA to a GGA
C) CGA to a CCA
D) CGA to GCT
E) CGA to a CGT

Answer 1

The transversion mutation would be classified as option E) CGA to a CGT.

Step-by-step explanation:

A transversion mutation refers to the substitution of a purine (adenine or guanine) with a pyrimidine (thymine or cytosine), or vice versa. Looking at the options given, the only mutation that fits this classification is option E) CGA to a CGT.

The original sequence has a purine (adenine), and it is replaced by a pyrimidine (thymine) in the mutant sequence.