Question

Gene mutations are those which involve

• A. The change in nature and sequence of base triplets of DNA
• B. The change in genome
• C. The change in all the genes
• D. The disappearance of certain part of chromosome

Answer 1

The correct option is A The change in nature and sequence of base triplets of DNA

Gene's transcription and translation produces a protein which has a specific function to perform. Also, a protein is a chain of amino acids. These amino acids are coded by codons or base triplets. Each codon will code for a particular amino acid. Change in sequence of these base triplets/codons (due to mutation) will lead to code of different amino acid and ultimately it will lead to a different protein which may be functional or non-functional.

So, the correct answer is 'The change in nature and sequence of base triplets of DNA'.