Genetic Code - Research Article from World of Anatomy and Physiology

This encyclopedia article consists of approximately 4 pages of information about Genetic Code.
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Genetic Code

The genetic code is the set of correspondences between the nucleotide sequences of nucleic acids such as deoxyribonucleic acid (DNA), and the amino acid sequences of proteins (polypeptides). These correspondences enable the information encoded in the chemical components of DNA to be transferred to the ribonucleic acid messenger (mRNA) and then used to establish the correct sequence of amino acids in the polypeptide. The elements of the encoding system, the nucleotides, differ by only four different bases. These are known as adenine (A), guanine, (G), thymine (T), and cytosine (C) in DNA or uracil (U) in RNA. Thus RNA contains U in the place of C and the nucleotide sequence of DNA acts as a template for the synthesis of a complementary sequence of RNA, a process known as transcription. For historical reasons, the term genetic code in fact refers specifically to the sequence of nucleotides...

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This section contains 960 words
(approx. 4 pages at 300 words per page)
Buy the Genetic Code Encyclopedia Article
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Genetic Code from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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