The common form of DNA present in the living organisms is the

A. A form

B. Z form

C. C form

D. B form

Answer: Option D

Solution(By Examveda Team)

The common form of DNA present in living organisms is the B form.
The most common form, present in most DNA at neutral pH and physiological salt concentrations, is B-form. That is the classic, right-handed double helical structure.
Canonical B-DNA is a double helix made of two antiparallel strands that are held together via hydrogen bonding in the A•T and G•C base pairs.