Supercoiling of DNA

Supercoiling of DNA

Q. 1

True about DNA supercoiling is all except :

 A

Underwinding results in negative superhelical density & supercoiling

 B

Superhelical density depends on length of DNA

 C

Underwinding strain is normally accommodated by strand separation

 D

B and C Both

Q. 1

True about DNA supercoiling is all except :

 A

Underwinding results in negative superhelical density & supercoiling

 B

Superhelical density depends on length of DNA

 C

Underwinding strain is normally accommodated by strand separation

 D

B and C Both

Ans. D

Explanation:

B, C i.e. Superhelical density depends on length of DNA, Underwinding strain is normally accommodated by strand separation


Q. 2

DNA supercoiling is done by :

 A

DNA polymerase I

 B

DNA polymerase II

 C

DNA topoisomerase

 D

DNA gyrase

Q. 2

DNA supercoiling is done by :

 A

DNA polymerase I

 B

DNA polymerase II

 C

DNA topoisomerase

 D

DNA gyrase

Ans. D

Explanation:

D i.e. DNA gyrase

Quiz In Between



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