For the first time, scientists have witnessed the very moment DNA begins to unravel, revealing a necessary molecular event ...

The famous DNA double helix is considered right-handed, meaning its spiral strands — a sugar-phosphate backbone — twist to the right. (To picture this, make a thumbs-up with your right hand ...

Shortly after, Watson and Crick made a crucial advance when they proposed that the DNA molecule was made up of two chains of nucleotides paired in such a way to form a double helix, like a spiral ...

Every day, billions of cells in your body divide, helping to replace old and injured cells with new ones. And each time this ...

The DNA molecule was composed of the traditional sugar backbones and nucleotide pairs, but rather than the well-known right-handed spiral of the double helix structure, famously discovered by Watson ...