This video allows us to explore the amazing 3D model of deoxyribonucleic acid (DNA). It not only confers the structure of DNA in detail but also talks about the intrinsic orientation, base pairing, and grooving of the double helix structure of DNA as well. Timeline: 00:01 introduction 00:58 polynucleotide of DNA 02:25 intrinsic orientation and base pairing of DNA 04:23 double helix of DNA