In part two of our DNA series on BioSpeak, we explore the molecular structure of DNA, focusing on nucleotides and their role in forming the double helix. This episode explains how DNA’s backbone is formed by bonds between deoxyribose sugars and phosphate groups, with hydrogen bonds enabling specific base pairing between Adenine, Cytosine, Guanine, and Thymine. We also describe how DNA grows in the 5’ to 3’ direction and how it compacts into chromosomes by wrapping around histones. Don’t miss this insightful look into the structure and organization of life’s genetic blueprint, with a surprising 99% DNA similarity shared among humans.
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