Double Crossover

Double crossover may refer to:

  • A type of railroad switch
  • An artificial nucleic acid structural motif used in DNA nanotechnology

Famous quotes containing the word double:

    “Well, I had gone and spoiled it again, made another mistake. A double one in fact. There were plenty of ways to get rid of that officer by some simple and plausible device, but no, I must pick out a picturesque one; it is the crying defect of my character.”
    —Mark Twain [Samuel Langhorne Clemens] (1835–1910)