For the first time, researchers have filmed in real time the disassembly of DNA at the atomic scale. This strand separation is the first step in DNA replication. This breakthrough, published ...

DNA has two strands. Each strand is a sequence of four chemical bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The strands are anti-parallel and complementary. ‘Anti-parallel ...

For DNA to replicate, the helix must first unwind and break the DNA from a double strand into two single strands. Upon ...