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Spermatogenesis is one of the fundamental but at the same time also one of the most complex differentiation processes in higher eukaryotes. For a long time the development of spermatozoa has been considered as related solely to the needs of transfer of the paternal genome into the egg. Other paternal contributions to the development of the embryo were not seriously considered. Only recently has it become evident, from studies of mouse embryonic development by Solter and colleagues, that also the paternal genome carries regulatory information into the zygote since the development of a mouse...

Four of the major animal systems studied for the mechanisms of their early embryonic development are treated in this volume. The articles address the specific questions studied in the various systems, discuss the fundamental questions raised by the particular organism and explain the techniques used to find answers to these questions. Questions of patternformation, early organogenesis and the genetics of the early development arecovered as well as the question of parental imprinting phenomena in mammals which are important for the early differentiation. The development of the mouse,...

This book presents an overview of various aspects of chromosome research, written by leading experts of the respective fields, combining classic and recent molecular biological results. The variety and comprehensiveness make it a handbook of chromosome research for all scientists, teachers and graduate students interested in this field. Dieses Buch fasst die unterschiedlichen Aspekte der Chromosomenforschung in Beitragen von fuhrenden Wissenschaftlern zusammen, wobei die klassischen Erkenntnisse mit neuesten Forschungsdaten zu einem umfassenden Uberblick uber das Gebiet kombiniert werden

Differential geometry and analytic group theory are among the most powerful tools in mathematical physics. This volume presents review articles on a wide variety of applications of these techniques in classical continuum physics, gauge theories, quantization procedures, and the foundations of quantum theory. The articles, written by leading scientists, address both researchers and grad- uate students in mathematics, physics, and philosophy of science.