This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Which form of DNA is predominantly seen 
Select and explain. 
A. B DNA, B. C DNA, C. A DNA, D. Z DNA
A: B DNA
Answer: A: B DNA 
Explanation: Most common form.Right handed double helix.Highly flexible.Watson and Crick model describes the B- form of DNA.