The MOST striking difference between A-, B-, and Z-form DNA is that:
A) A -orm does not contain a major and minor groove.
B) B-form has the smallest helical diameter.
C) Z-form is left handed.
D) B-form has the greatest number of base pairs per helical turn.
E) A-form maximizes base stacking interactions.

Question

Quizplus · Accepted Answer

The most striking difference between A-, B-, and Z-form DNA is that Z-form DNA is the only one that is left-handed, while A- and B-form DNA are both right-handed. This means that the direction of the helix twists in the opposite direction for Z-form DNA compared to A- and B-form DNA.

The MOST Striking Difference Between A-, B-, and Z-Form DNA