Multiple Choice
Which of the following statements about supercoiling of DNA are true?
(1) Supercoiled DNA differs in linking number from relaxed DNA.
(2) Supercoiled DNA can be relaxed through the action of topoisomerases.
(3) All DNA in the cell is positively supercoiled.
(4) A negatively supercoiled DNA is more difficult to unwind.
A) Only 2, 3 and 4 are true
B) Only 1, 2 and 3 are true
C) Only 1 and 3 are true
D) Only 1 and 2 are true
E) All are true
Correct Answer:
Verified
Correct Answer:
Verified
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