________ plays an important role in storing the energy needed for the unwinding of DNA during replication,recombination,repair and transcription.
A)A high percent of G:C base pairs
B)The charge on basic side chains of histone proteins
C)Negative supercoiling
D)Overwinding of the helix

Question

Quizplus · Accepted Answer

Negative supercoiling of DNA increases the potential energy stored in the double helix, which is important for unwinding during replication, recombination, repair, and transcription. This is achieved by the twisting of the DNA in the opposite direction to the turning of the double helix, resulting in the release of stress and tension. A high percent of G:C base pairs, the charge on basic side chains of histone proteins, and overwinding of the helix do not have a direct role in storing energy for DNA processes.

________ Plays an Important Role in Storing the Energy Needed