... was duplicated and transmitted during mitosis. Watson and Crick gathered there information from various sources and people. In a nucleic acid the three main ingredients are a five carbon sugar, a phosphate group and a organic nitrogen-containing base. (Watson, 1968) These were the five bases which are adenine and guanine which form a large double ring structure called cytosine.(Levine, 1997) Cytosine, ... thymine, and uracil are single ring structures called pyrimidine.(Watson, 1968) Later, they discovered that there was a problem with their data. They could not determine the band seque...

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• Grade Level: High School