Which of the Following is the Function of DNA Topoisomerases

Question

Which of the following is the function of DNA topoisomerases?
A)packaging DNA into nucleosomes
B)forming cruciform DNA
C)unwinding G:C-rich areas in DNA
D)breaking 1 or more strands of DNA,winding them tighter or looser,and rejoining the ends

Accepted Answer

DNA topoisomerases are enzymes that regulate the supercoiling of DNA by breaking one or more strands of DNA, winding them tighter or looser, and rejoining the ends. This activity is crucial during DNA replication, transcription, and repair.