Mutation NEET 2025 Level Principles of Inheritance & Variation Botany NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Which of the following is the best definition of a mutation?

1.	A mutation is a permanent change in DNA.
2.	A mutation is a permanent change in DNA that is harmful to an organism.
3.	A mutation is a permanent change in the structure of intra-cellular organelles caused by changes in DNA/RNA.
4.	A mutation is a permanent change in chromosomal structure caused by DNA/RNA changes.

Subtopic: Mutation |

From NCERT

Please attempt this question first.

Hints

Please attempt this question first.

Consider the given two statements:

Assertion (A):	UV radiations can cause mutations in organisms – it is a mutagen.
Reason (R):	UV radiations are ionising radiations.

1.	(A) is True but (R) is False
2.	Both (A) and (R) are True and (R) is the correct explanation of (A)
3.	Both (A) and (R) are True but (R) is not the correct explanation of (A)
4.	(A) is False but (R) is True

Subtopic: Mutation |

53%

From NCERT

Please attempt this question first.

Hints

Please attempt this question first.