A SYSTEMIC CONCEPT OF THE GENE
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Data
1992-09-01
Autores
Pardini, MIDC
Guimaraes, R. C.
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Editor
Soc Brasil Genetica
Resumo
The univocal correspondence between one gene and one polypeptide has been challenged by many examples of ambiguities. A rapidly expanding list of one-to-many or many-to-one correspondences includes: genomic rearrangements, alternative processing of transcripts, overlapping translation frames, RNA editing, alternative translation modes, and polyprotein cleavage.The genomic message requires interpretation through decoding by a sophisticated information retrieval system which should also carry some kind of information. The full meaning of the whole cell, as a unit, is emphasized.The gene is a combination of (one or more) nucleic acid (DNA or RNA) sequences, defined by the system (the whole cell, interacting with the environment, or the environment alone, in subcellular or pre-cellular systems), that gives origin to a product (RNA or polypeptide).
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Revista Brasileira de Genetica. Ribeirao Pret: Soc Brasil Genetica, v. 15, n. 3, p. 713-721, 1992.