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Genetics and Evolution: The Molecules of Inheritance (New Encyclopedia of Science)
Genetics and Evolution The Molecules of Inheritance - New Encyclopedia of Science Author:Jill Bailey In recent years, the "mad scientist" of popular imagination has changed from a nuclear physicist to a biotechnologist, seen as tinkering with life itself. Yet the new fields of molecular biology hold out prospects for enormous advances in the human condition, alleviating disease and promoting economic well-being. Since the 1950s, scientists have... more » learned that life is governed by the extraordinary system of genes encoded in the chemical patterns of DNA in every cell. The mechanisms behind these secrets have gradually been revealed, showing how genes can be transmitted between generations, and how they are expressed in the bodies of all living creatures. This knowledge has accompanied an ever-more-subtle understanding of the dynamics of evolution through natural selection, the many strategies whereby different species ensure their survival to the next generation, and accommodate themselves to environmental changes or the possibilities of new sources of food. Today, as molecular biologists actively intervene in the genetic material of more and more species, and especially in view of advances in reproductive technology, our very perception the meaning of life has been subject to change. This encyclopedia provides an up-to-date, accessible, and attractive introduction to these important subjects. Its thematic organization, highlighted by full-color artwork and photographs, takes the reader to the essence of the key topics, concepts and debates of the field, while the 500-entry keyword section provides a "mini"-encyclopedia of central terms and ideas.« less