Q. Consider the following statements regarding mutation:
1.It is a phenomenon which results in alteration of DNA sequences.
2.It results in changes in the phenotype of an organism only.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A
Notes:

Explanation: Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. In addition to recombination, mutation is another phenomenon that leads to variation in DNA.

Source: Science NCERT