Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that make up the human genome. But where and how does the famous double helix fit into ...

that the DNA molecule exists in the form of a three-dimensional double helix. More than 50 years passed before the significance of Miescher's discovery of nucleic acids was widely appreciated by ...

The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix ... a primer (Figure 2). After the primer is in place ...