Biology · Molecular Biology
If the linking number (Lk) of a relaxed circular DNA molecule is increased by +2, what change occurs in its structural topology?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The DNA undergoes positive supercoiling with a new Lk of 202✓
- 2The DNA undergoes positive supercoiling with a new Lk of 198
- 3The DNA undergoes negative supercoiling with a new Lk of 202
- 4The DNA structure remains unchanged topology-wise
Correct answer
The DNA undergoes positive supercoiling with a new Lk of 202
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