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Which of them is used to introduce negative supercoiling in DNA?
  • a)
    Type 1 topoisomerase
  • b)
    Ethidium bromide
  • c)
    Gyrase/ type 2 topoisomerase
  • d)
    SYBR gold
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of them is used to introduce negative supercoiling in DNA?a)Type...
Type 1 topoisomerase break only one strand of DNA while gyrase works on both the strands, it breaks and reseal both DNA strands and introduce negative supercoils. Ethidium bromide and SYBR gold are used to stain DNA molecules.
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