... bases. (Watson, 1968) The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). (Watson, 1968)"The stuff genes are made of."()In the early 1950's, British biophysicist Francis Crick and American biochemist James D. Watson determined the three dimensioned structure deoxyribonucleic acid (DNA) with the help of Maurice Wilkins and the test results from Rosalind Franklin's x-ray diffraction images.(Levine, 1997) A DNA molecule is ... unique theories which made this discovery more enjoyable. The scientific method is basically the underlying pattern of logical thoughts that is very...

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... structure that DNA forms when more water is present. Both scientists showed that DNA was a helix. It is the B form of DNA that proved to be more biologically important. Meanwhile James Watson and Francis Crick were working with atomic models at Cambridge. Not much was achieved until Watson went to Kings College to have a look at the picture taken by Rosalind ... together nicely by hydrogen bonds. He was able to fit the bases into a double standard phosphate sugar backbone helix with phosphate sugar backbone on the outside. Below is a picture of James Watson (left) and Francis Crick with...

• Word Count: 1535
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• Grade Level: High School