By: Michael Crichton
Source: Crichton, Michael. Jurassic Park. New York: Alfred
A. Knopf, 1990, 66–69.
About the Author: Michael Crichton (1942–) was born in Chicago, Illinois, and he earned a B.A. in anthropology in 1965 from Harvard University, and an M.D. in 1969 from Harvard Medical School. He turned to writing rather than the practice of medicine. His novels focus on the implications of scientific developments. His fiction has garnered awards and has been the source of several popular films.
In 1953, American chemist James D. Watson and his British counterpart, Francis Crick, identified deoxyribonucleic acid (DNA) as the molecule of heredity. They described its structure as a spiral ladder with each rung composed of two of the four nucleotide bases—adenine, thymine, guanine, and cytosine. Adenine always bonds with thymine, and guanine with cytosine. The nucleotide bases bond one atop another to create the DNA ladder structure. Half a strand of DNA might be the sequence thymine, cytosine, cytosine, guanine. The other half must be adenine, guanine, guanine, cytosine.
The commercial possibility of DNA emerged in the early 1970s when American chemist Hamilton O....
(The entire section is 2400 words.)
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