As the two strands of DNA are unraveled, which enzyme relieves the strain on the two strands?  

A.  DNA polymerase
B.  DNA ligase
C.  DNA gyrase
D.  DNA endonuclease
E.  DNA exonuclease


C.  DNA gyrase

Biology & Microbiology

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Abnormal cell division that does not pose a

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a. malignant. b. benign. c. metastatic. d. carcinogenic. e. repressed

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The amateur scientist (Koch/Leeuwenhoek/Pasteur) made his own microscopes and first reported the existence of microbes

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Biology & Microbiology