Beyond the ladder-like structure described above, another key characteristic of double-stranded DNA is its unique three-dimensional shape. The first photographic evidence of this shape was ...

A nucleosome is a segment of the DNA wrapped around a ... Shown here is the structure of naked DNA -- DNA without all of the proteins that organize it into chromatin. Note how its structure ...

Restriction mapping is a method used to map an unknown segment of DNA by breaking it into pieces and then identifying the locations of the breakpoints. This method relies upon the use of proteins ...

Upon finding and pairing with it, Cas9 snips out the target segment. It can either be deleted or replaced with another DNA sequence (not shown here). A new resource published by Hannon and ...