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8. | Which of the following would relax negatively supercoiled DNA? | |
A. | DNA gyrase | |
B. | Type I topoisomerase | |
C. | Collagen | |
D. | Elastin | |
Answer: Option B | |
Explanation: | |
Negatively supercoiled DNA can be relaxed by topoisomerase I. It creates the nick in one strand of DNA and rotates freely to resolve supercoiling. |
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