DNA gyrase is a type of Type Il topoisomerase found in bacteria that induces negative supercoiling. A bacterial chromosome that has a twist of 200 and a writhe of -2 is acted upon by DNA gyrase. What is the resulting twist and writhe after a single DNA gyrase reaction? OA) twist: 200; writhe: -4 OB) twist: 201; writhe: -2 OC) twist: 199; writhe: -2 OD) twist: 200; writhe: 0 Q3 Lk Number what is the Lk number of the resulting DNA molecule? Enter your answer here

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Q2 Twist and Writhe
DNA gyrase is a type of Type Il topoisomerase found in bacteria that induces negative
supercoiling. A bacterial chromosome that has a twist of 200 and a writhe of -2 is acted upon
by DNA gyrase. What is the resulting twist and writhe after a single DNA gyrase reaction?
OA) twist: 200; writhe: -4
B) twist: 201; writhe: -2
C) twist: 199; writhe: -2
OD) twist: 200; writhe: 0
Q3 Lk Number
what is the Lk number of the resulting DNA molecule?
Enter your answer here
Transcribed Image Text:Q2 Twist and Writhe DNA gyrase is a type of Type Il topoisomerase found in bacteria that induces negative supercoiling. A bacterial chromosome that has a twist of 200 and a writhe of -2 is acted upon by DNA gyrase. What is the resulting twist and writhe after a single DNA gyrase reaction? OA) twist: 200; writhe: -4 B) twist: 201; writhe: -2 C) twist: 199; writhe: -2 OD) twist: 200; writhe: 0 Q3 Lk Number what is the Lk number of the resulting DNA molecule? Enter your answer here
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