The form of DNA that is believed to be most biologically significant is ______.
A)A- DNA
B)Z- DNA
C)E- DNA
D)B- DNA
E)D- DNA

Question

The form of DNA that is believed to be most biologically significant is  ______.
A)A- DNA
B)Z- DNA
C)E- DNA
D)B- DNA
E)D- DNA

Quizplus · Accepted Answer

B-DNA is the most common and biologically significant form of DNA. It has a right-handed helical structure with 10 base pairs per turn and a diameter of approximately 2 nm. A-DNA and Z-DNA are alternative conformations of DNA that have different helical structures and are less common in vivo. E-DNA is a hypothetical DNA structure that has not been observed in nature.

The Form of DNA That Is Believed to Be Most