Question

List three important features of double helical model of DNA.

Answer 1

Features of a double helical model of DNA :

• It contains two polynucleotide strands wound around each other.
• The backbone of each consists of alternating deoxyribose and phosphate groups.
• The phosphate group bonded to the 5' carbon atom of one deoxyribose is covalently bonded to the 3' carbon of the next.