Genetic Code - Research Article from Macmillan Science Library: Genetics

This encyclopedia article consists of approximately 6 pages of information about Genetic Code.
This section contains 1,616 words
(approx. 6 pages at 300 words per page)
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Translation

The gene is represented by the sequences of bases in the DNA molecule, which can, in a sense, be thought of as a "storage molecule" for genetic information. DNA is extremely stable, a property critical to the maintenance of the integrity of the gene. This stability is evidenced by the fact that DNA has been extracted from Egyptian mummies and extinct animals such as the woolly mammoth. It can be extracted from dried blood or from a single hair at a crime scene.

Each cell contains a complete set of genes, but only certain of these genes are active or "expressed" at any one time. When a gene is active, a "disposable" copy is transcribed from the gene into codons contained in a messenger RNA (mRNA) molecule. Unlike the DNA molecule, the mRNA molecule is relatively unstable and short-lived. This is so that when a gene is...

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This section contains 1,616 words
(approx. 6 pages at 300 words per page)
Buy the Genetic Code Encyclopedia Article
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Macmillan Science Library: Genetics
Genetic Code from Macmillan Science Library: Genetics. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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