The Chinese seemed to be mourning Mao in a heartfelt fashion. But I wondered how many of their tears were genuine. People had practiced acting to such a degree that they confused it with their true feelings.
Bio: Richard E. Dickerson was the first to carry out a single-crystal structure analysis of B-DNA, with what has become known as the "Dickerson dodecamer": C-G-C-G-A-A-T-T-C-G-C-G.