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Questions and Answers
Which of the following is true about circular DNA molecules?
Which of the following is true about circular DNA molecules?
- They contain ends that can rotate
- They are more prone to breakage than linear DNA molecules
- Any change in twist is balanced by a change in supercoiling (correct)
- They are unable to undergo supercoiling
What happens to the twist and supercoiling of DNA in the absence of a break?
What happens to the twist and supercoiling of DNA in the absence of a break?
- They both decrease
- They both remain constant
- A change in twist is balanced by a change in supercoiling (correct)
- They both increase
Which type of DNA molecule is more susceptible to breakage?
Which type of DNA molecule is more susceptible to breakage?
- Circular DNA molecules
- DNA molecules do not break
- Both are equally susceptible
- Linear DNA molecules (correct)
