A SIMPLE KEY FOR CONTROLS AND VARIABLES UNVEILED

If two pyrimidines ended up paired or two purines ended up paired, The 2 pyrimidines would get up a lot less House than a purine plus a pyrimidine, and The 2 purines would get up more space, as illustrated in Figure \(\PageIndex 7 \). If these pairings have been at any time to come about, the structure of DNA could well be similar to a staircase de