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Action of DNA Gyrase

View the animation below, then complete the quiz to test your knowledge of the concept.






1DNA gyrase introduces ______ supercoils in the DNA
A)positive
B)negative
C)neutral
D)all of the above



2________ supercoiling represents a force on the DNA in a right-handed direction.
A)Negative
B)Positive
C)Neutral
D)Detrimental



3DNA gyrase uses ________ to alleviate supercoiling.
A)spare nucleotides
B)mutations
C)topoisomerase II
D)ATP



4DNA gyrase adds positive supercoils to a negatively coiled DNA molecule.
A)True
B)False



5Positive supercoiling causes the DNA to form a more compact structure.
A)True
B)False







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