Multiple choice

Function of DNA topoisomerase II is to

  1. cut the single strand of DNA

  2. cut both the strands of DNA

  3. stabilize both the strands

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

DNA topoisomerase II functions by creating a transient double-strand break in the DNA helix to allow another segment of DNA to pass through, thereby relieving supercoiling.

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