ture was grasped the mechanism for molecular replication was obvious. Each of the two strands of the double helix could, upon separation of the hydrogen bonds between the base pairs, serve as a template for the synthesis of a new complementary strand. These two new strands form to create two double helices. In 1953, Francis Crick received his Ph.D. from Cambridge University. Following that he continued his study of the genetic code. By working with Watson, molecular biologist Sidney Brenner, physicist George Gamov and others, Crick showed how the sequence of four bases in DNA and RNA induced the creation of the sequence of twenty basic amino acids. This initial discovery is still being studied today. By the year of 1966, Crick felt that the foundation of molecular biology had been sufficiently outlined and it was now time for him to pursue other interests. Next, Crick turned his attention to embryology. In 1976 he went to the Salk Institute in California for a sabbatical year from the Medical Research Council. The following year, he decided to make a career change from the MRC and moved to the Salk Institute to pursue his interest in the workings of the brain. As part of Crick's work he investigated the complex topic of human dreams. This interested Crick because he wanted to know more about neural nets. He discovered that you cannot understand how the brain works by just figuring out how one neuron works. You must understand how groups of neurons interact and work together. When you store too many memories they tend to get in eachother's way. Crick realized that in sleep and REM maybe the brain was trying to separate memories which got confused because they were "too alive". Because the kind of mixtures you get in neural nets are the sort of things you have in dreams, Crick believed this to be evidence of that.The study of the brain has come a long way, but there is still a lot to be learned. Today, Francis Crick is gr...
