- 1(current)
Q. No.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 |
Level 4: Below 35%
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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%
Level 3: 35%-60%
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- 1(current)
Q. No.
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