Which of the following types of DNA are often supercoiled?
A)extremely long linear DNA, such as seen in human chromosomes
B)very short linear DNA
C)circular DNA
D)DNA molecules that contain both circular and linear regions
E)all of the above

Question

Quizplus · Accepted Answer

Circular DNA molecules, such as bacterial chromosomes and plasmids, are often supercoiled due to the twisting and winding of the circular strand. This can help compact the DNA into a smaller space and also facilitate processes such as DNA replication and transcription. Linear DNA molecules, regardless of their length, are less likely to be supercoiled. DNA molecules that contain both circular and linear regions may have supercoiled circular portions, but not necessarily supercoiled linear portions.

Which of the Following Types of DNA Are Often Supercoiled