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Q. No.Consider the given two statements:
| Assertion: (A) | We cannot see pure DNA fragments in the visible light under microscope. |
| Reason: (R) | The DNA fragments separate according to their shape only and are too small to be seen in the gel electrophoresis. |
| 1. | Both (A) and (R) are True and the (R) is the correct explanation of the (A). |
| 2. | Both (A) and (R) are True and the (R) is not the correct explanation of the (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Separation and Isolation of DNA fragments |
From NCERT
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Consider the given two statements:
| Assertion (A): | Ethidium bromide is used to visualize DNA fragments during gel electrophoresis. |
| Reason (R): | Ethidium bromide binds to the proteins in DNA fragments, making them visible under UV light. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Â Separation and Isolation of DNA fragments |
From NCERT
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