A mutation is a change in the DNA of an organism. The change may or may not result a change to the physical characteristics (or phenotype) of the organism. Mutations that occur in a gamete (sperm or eggs) can be passed to the next generation, whereas mutations that occur in body (or 'somatic') cells may be harmless or may result in a disease such as cancer. Mutations can result in DNA being copied incorrectly. Mutagens can also cause mutations.

A point mutation is a change in one base in the genetic code. The change of one base to a different base (often caused by the DNA being copied incorrectly)-this is called a substitution mutation.

Identify the statements which are true with respect to point mutation:

A. It is a change of one base to a different base in tRNA
B. The insertion of additional base into DNA cause point mutation
C. The deletion of a base from DNA cause point mutation
D. Substitution mutation by incorrect copying of RNA cause point mutation

Choose the correct answer from the options given below:

A and B

The correct answer is Option () →