Molecular Asymmetry In Biology
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Molecular Asymmetry In Biology
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Author : Ronald Bentley
language : en
Publisher:
Release Date : 1970
Molecular Asymmetry In Biology written by Ronald Bentley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Asymmetry (Chemistry) categories.
Molecular Asymmetry In Biology Vol 1
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Author : Ronald Bentley
language : en
Publisher:
Release Date : 1969
Molecular Asymmetry In Biology Vol 1 written by Ronald Bentley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Mirror Image Asymmetry
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Author : James P. Riehl
language : en
Publisher: John Wiley & Sons
Release Date : 2010-03-22
Mirror Image Asymmetry written by James P. Riehl and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-22 with Science categories.
An overview of the importance and consequences of asymmetry from molecules to the macroscopic world As scientists have become more capable of probing the structure of three-dimensional objects at the molecular level, the need to understand the concept and the consequences of mirror-image asymmetry—chirality—has increased enormously. Written at an introductory level, Mirror-Image Asymmetry provides an overview of the importance and effects of asymmetry from the atomic and molecular world of physics and chemistry to the organisms and structures that we see and use in our everyday life. The reader will develop a broad appreciation of three-dimensional asymmetry from the microscopic molecular world to the macroscopic world of handedness, automobile driving, windmills, sports, and similar phenomena. The book features: An introduction to basic definitions and the nomenclature of asymmetric and dissymmetric molecules Up-to-date examples of the importance and consequences of asymmetry in modern drug applications, current theories of the origin of asymmetry in nature, and examples of molecular asymmetry in smell, taste, and insect communication Many illustrations, chemical structures, and photographs that enable the reader to connect the actual asymmetrical structures to the different phenomena that depend on structural asymmetry In the 150 years since Louis Pasteur discovered asymmetry in molecular structures, scientists have made great progress in understanding how interactions between chiral molecules influence biochemical processes. This knowledge is leading to very sophisticated asymmetric synthetic techniques that have greatly benefitted many research groups especially those in the pharmaceutical industry. This guide to the role of molecular and macroscopic chirality will inspire students and scientists in chemistry, biology, physics, and drug discovery.
Biological Asymmetry And Handedness
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Author : Gregory R. Bock
language : en
Publisher: John Wiley & Sons
Release Date : 2008-04-30
Biological Asymmetry And Handedness written by Gregory R. Bock and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-04-30 with Science categories.
Examines the progress of leading scientists working on various aspects of handedness in order to consider the occurrence of handedness in the biological world. Provides in-depth coverage of the origin and development of morphological asymmetry occurring in most types of living organisms.
Amino Acids And The Asymmetry Of Life
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Author : Uwe Meierhenrich
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-08-15
Amino Acids And The Asymmetry Of Life written by Uwe Meierhenrich and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-08-15 with Science categories.
"How did life originate and why were left-handed molecules selected for its architecture?" This question of high public and interdisciplinary scientific interest is the central theme of this book. It is widely known that in processes triggering the origin of life on Earth, the equal occurrence, the parity between left-handed amino acids and their right-handed mirror images, was violated. The balance was inevitably tipped to the left – as a result of which life's proteins today exclusively implement the left form of amino acids. Written in an engaging style, this book describes how the basic building blocks of life, the amino acids, formed. After a comprehensible introduction to stereochemistry, the author addresses the inherent property of amino acids in living organisms, namely the preference for left-handedness. What was the cause for the violation of parity of amino acids in the emergence of life on Earth? All the fascinating models proposed by physicists, chemists and biologist are vividly presented including the scientific conflicts. The author describes the attempt to verify any of those models with the chirality module of the ROSETTA mission, a probe built and launched with the mission to land on a comet and analyse whether there are chiral organic compounds that could have been brought to the Earth by cometary impacts. A truly interdisciplinary astrobiology book, "Amino Acids and the Asymmetry of Life" will fascinate students, researchers and all readers with backgrounds in natural sciences. With a foreword by Henri B. Kagan.
Asymmetry In Plants
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Author : Bir Bahadur
language : en
Publisher: CRC Press
Release Date : 2019-03-25
Asymmetry In Plants written by Bir Bahadur and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-25 with Nature categories.
Plants exhibit forms of asymmetry analogous to "handedness" in bilaterally symmetrical animals. This book explores the evolutionary significance and development of asymmetry. Examples of genetic control include the direction of tendril or stem coiling of many climbing plants; the so-called spiral phyllotaxy and floral taxy; and contorted petal arrangement is another kind of left- right symmetry in plants; the direction of contortion is fixed in some but not in other plants. The book will underscore tha all phenomena related to handedness start during embryogenesis itself, with the occurrence of embryo rotation. Key selling features: First consolidated book on Plant Handedness Relates handedness, asymmetry and chirality to the evolution of different organizational levels in plant biology Emphasizes handedness as a vital governing force in plant functional evolution Provides a new perspective, hitherto ignored, into plant developemtn and evolution Describes how an age-old phenomenon can give scope for investigation from a very modern interdisciplinary approach
Asymmetric Cell Division
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Author : Alvaro Macieira-Coelho
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-04-21
Asymmetric Cell Division written by Alvaro Macieira-Coelho and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-04-21 with Science categories.
Cell biologists have recently come to understand that asymmetry of division is an important regulatory phenomenon in the fate of a cell. In adult organisms asymmetric divisions regulate the stem cell reservoir and are a source of the drift that contributes to aging. This book describes the phenomenon in different organisms and addresses its implications for the development of the organism, cell differentiation, human aging and the biology of cancers.
Animal Asymmetry
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Author : Anthony Charles Neville
language : en
Publisher: Hodder Education
Release Date : 1976
Animal Asymmetry written by Anthony Charles Neville and has been published by Hodder Education this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Science categories.
Molecules And Life
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Author : Mikhail V. Vol kenshtein
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Molecules And Life written by Mikhail V. Vol kenshtein and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
acids. The achievements of molecular biology testify to the success of material science in a realm which, until recently, appeared totally enig matic and mysterious. Further scientific developments should bring to mankind vast developments both in theoretical knowledge and in practical applications, namely, in agriculture, medicine, and technology. The purpose of this book is to explain molecular biophysics to all who might wish to learn about it, to biologists, to physicists, to chemists. This book contains descriptive sections, as well as sections devoted to rigorous mathematical treatment of a number of problems, some of which have been studied by the author and his collaborators. These sections may be omitted during a first reading. Each chapter has a selected bibliography. This book is far from an exhaustive treatise on molecular biophysics. It deals principally with questions related to the structures and functions of proteins and nucleic acids. M. V. Vol'kenshtein Leningrad, September, 1964 CONTENTS Chapter 1 Physics and Biology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Physics and Life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Molecular Physics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Molecular Biophysics ................................... 9 Thermodynamics and Biology. . . . . . . . . . . . . . . . . . . . . 12 . . . . . . . Information Theory. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 . . . . . . . . . . Chapter 2 Cells, Viruses, and Heredity. . . . . . . . . . . . . . . . . . . . . . . . 27 . . . . . . . . The Living Cell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 . . . . . . . . . . . Cell Division. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 . . . . . . . . . . . . Viruses and Bacteriophages ........... . . . . . . . . . . . . . . . 44 . . . . Basic Laws of Genetics . . . . . . . . . . . . . . . . . . . . . . . . . 50 . . . . . . . . . Mutations and Mutability ........ , ................. " . . . . 60 Genetics of Bacteria and Phages " . . . . . . . . . . . . . . . . . . 66 . . . . . . Chapter 3 Biological Molecules. . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 . . . . . . . . . . Amino Acids and Proteins . . . . . . . . . . . . . . . . . . . . . . . 79 . . . . . . . . Asymmetry of Biological Molecules ....................... 87 Primary Structure of Proteins ............................ 94 Nucleic Acids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 . . . . . . . . . . . . Some Biochemical Processes in the Cell. . . . . . . . . . . . . . . . 109 . . . . Chapter 4 Physics of Macromolecules. . . . . . . . . . . . . . . . . . . . . . . . 123 . . . . . . . . .
On Chirality And The Universal Asymmetry
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Author : Georges H. Wagnière
language : en
Publisher: John Wiley & Sons
Release Date : 2008-09-26
On Chirality And The Universal Asymmetry written by Georges H. Wagnière and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-26 with Science categories.
Until half a century ago, it was assumed that the forces of nature were symmetric and that they did not distinguish between right and left, between image and mirror image. The discovery of the violation of parity in 1956 was more than a sensation, for some it was a shock. It implied that the universe displays handedness, or chirality, and that it is fundamentally asymmetric. Remarkably, a most striking asymmetry is encountered in the realm of biology. Living organisms contain proteins built almost exclusively from L-amino acids, and nucleic acids derived from D-sugars only. Yet a mirror-image biochemistry, based on D-amino acids and L-sugars is, from a purely chemical standpoint, entirely conceivable. Where, then, does this extraordinary natural selectivity come from? Is it directly, or indirectly, connected to the universal violation of parity? This book is meant as a brief review of the various manifestations of handedness, or chirality, in the universe. It does not attempt to present a solution to basic questions which perhaps will never be unambiguously and conclusively answered. Rather, it is an excursion through nature, to observe and recognize how the chirality manifests itself at different structural levels. The excursion starts in the chemistry and physics laboratory. Then a journey into outer space and back in time is undertaken. After a return to our planet Earth, the focus is on the development of living organisms. The text should be accessible to anyone having the equivalent of a first-year university instruction in physics and chemistry. It is also hoped that a layperson with a more modest scientific formation may gain a general impression of the basic asymmetry in nature and of the fundamental significance of chirality. Mathematical expressions, wherever they occur, may then be overlooked. Some more difficult sections may be skipped. A Glossary preceding the Subject Index should be helpful.