The Biological Significance of the Genetic Code

Over the past 5 years or so we have witnessed what is often referred to as one of the great accomplishments of science, the “solving” of the genetic code. The classical biologist, however, may find himself hard put to grasp the biological significance of this achievement. There can be no doubt that this is indeed a singularly great feat, yet one can legitimately ask how the specific knowledge of just what “code” the cell employs increases our understanding of living systems over and above the mere knowledge that the cell does employ a “code” (of a very general kind). Would the cell we see today have been any different had not UUU been assigned to phenylalanine?

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