Question

Which of the following can be the result of mutation?
A. Changes in phenotype
B. Changes in genotype
C. Variation in a population

• A. A and B
• B. A, B and C
• C. B and C
• D. B only

Answer 1

The correct option is B A, B and C

Mutation is a change in DNA sequence that can result due to error in DNA replication, exposure to ionising radiations or chemicals called mutagens.

This change in DNA sequence results in change in genetic composition (genotype) and may result in change in external features (phenotype) as well.

Mutations may cause the introduction of new alleles in a population thereby increasing its genetic variation.