DNA is actually rather simple. It basically consists of about the fewest number of bases possible for encoding information (four), even though more bases are po

DNA is actually rather simple. It basically consists of about the fewest number of bases possible for encoding information (four), even though more bases are possible (and have been stably engineered into organisms). Even so, while these bases pair off well, there is some cross-talk possible (G-quadruplexes, G:T base-pairing).