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During the last decades a breakthrough in the understanding of the mechanisms controlling development has been achieved. This has been possible, in great part, by the use of various experimental approaches. This book focuses on topics concerning some of the processes involved in development, the main emphasis being on the genetic and molecular mechanisms in the evolutionary context. Drosophila is used as an experimental model for the genetic approach to the understanding of behaviour.
For more than ten years, the distinguished geneticists James F. Crow and William F. Dove have edited the popular "Perspectives" column in Genetics, the journal of the Genetics Society of America. This book, Perspectives on Genetics, collects more than 100 of these essays, which cumulatively are a history of modern genetics research and its continuing evolution.
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Includes entries for maps and atlases.
Año 450 d. C. El imperio de Atila, rey de los hunos, se extiende desde el Rin hasta el mar Negro y desde el Danubio hasta el Báltico. Sus hordas invencibles han sometido a las tribus germánicas y han derrotado una y otra vez al Imperio romano de Oriente, que ahora, temeroso, se inclina ante él y paga tributo. Desde el Danubio hasta Constantinopla todo está arrasado. Flavio Aecio, general en jefe de las tropas de Occidente, sabe que, tarde o temprano, le ha de llegar el turno a su parte del Imperio. Pero Occidente es débil y está solo: la rica provincia de África ha caído en manos de los vándalos, suevos y bagaudas campan a sus anchas por Hispania y, en el sudoeste de la Galia, los ...
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