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Good. Molecular Strategies in Biological Evolution (Annals of the New York Academy of Sciences) by Lynn Helena Caporale (Editor)--SOFTCOVER CONDITION GOOD SIGNED BY PREVIOUS OWNER-PUBLISHED BY THE NEW YORK ACADEMY OF SCIENCE COPYRIGHT 1999-434 PAGES Three. 300 p. Audience: Professional and scholarly; College/higher education. Molecular Strategies in Biological Evolution (Annals of the New York Academy of Sciences) by Lynn Helena Caporale (Editor)--SOFTCOVER CONDITION GOOD SIGNED BY PREVIOUS OWNER-PUBLISHED BY THE NEW YORK ACADEMY OF SCIENCE COPYRIGHT 1999-434 PAGES Three strategies of different quality contribute in parallel to the natural formation of genetic variants in bacteria: (1) small local alterations of DNA sequences; (2) recombinational reshuffling of segments of the genome; and (3) acquisition of DNA sequences by horizontal gene transfer. Key enzymes involved in these processes often act as variation generators by making use of structural flexibilities of biological macromolecules and of the effect of random encounter. In the theory of molecular evolution, genetic determinants of variation generators as well as of modulators of the frequency of genetic variation are defined as evolutionary genes.
