Question

Which one of the following mutations is not hereditary?

• A. Gametic
• B. Genetic
• C. Somatic
• D. Zygotic

Answer 1

Answer: (C)

The correct option is C Somatic
Mutations are the permanent changes in the nucleotide sequence of the genome of an individual. These can occur during replication of DNA or its exposure with radiations or carcinogens, etc.

Somatic mutations occur in somatic cells, also known as non-reproductive cells. The genes in these cells are non-heritable and hence any mutations the will not be passed to next generations. The only mutations that are inherited if they occur in gametes (eggs and sperm). Such mutations that occur in gametes are also called germ-line mutations.

So, the correct option is 'Somatic'.