Two years ago, nearly 25,000 DNA samples from convicted felons were sitting around the Maryland State Police laboratory. The samples hadn’t been analyzed or catalogued into the state’s DNA database system because of inadequate funding and long-vacant ...

Not all DNA looks like the familiar double helix. Sometimes, parts of our genetic code fold into unusual shapes under certain conditions. One such structure known as a G-quadruplex (G4) looks like a knot. These knot-like conformations can play important ...