Threads of Life is the story of living organisms and their components, evolution, diversity, and interactions with the environment. Threads of Life discusses the organisms, their common threads or molecules, and how these threads promote the evolution of biologically diverse organisms. The evolution of organisms occurs through the processes of natural selection or the environmental influences, which define how these organisms exist. The main idea expressed throughout this manuscript is the presence of common threads that connect all organisms even in diversity. These common threads of life that are fundamental in all organisms include cell, DNA, RNA, chemicals, food web, and many others.
Since the discovery of the structure of DNA and the birth of the genetic age, a powerful vocabulary has emerged to express science’s growing command over the matter of life. Armed with knowledge of the code that governs all living things, biology and biotechnology are poised to edit, even rewrite, the texts of life to correct nature’s mistakes. Yet, how far should the capacity to manipulate what life is at the molecular level authorize science to define what life is for? This book looks at flash points in law, politics, ethics, and culture to argue that science’s promises of perfectibility have gone too far. Science may have editorial control over the material elements of life, but it does not supersede the languages of sense-making that have helped define human values across millennia: the meanings of autonomy, integrity, and privacy; the bonds of kinship, family, and society; and the place of humans in nature.
Elegant, suggestive, and clarifying, Lewis Thomas's profoundly humane vision explores the world around us and examines the complex interdependence of all things. Extending beyond the usual limitations of biological science and into a vast and wondrous world of hidden relationships, this provocative book explores in personal, poetic essays to topics such as computers, germs, language, music, death, insects, and medicine. Lewis Thomas writes, "Once you have become permanently startled, as I am, by the realization that we are a social species, you tend to keep an eye out for the pieces of evidence that this is, by and large, good for us."
Life is all around us, abundant and diverse. It is truly a marvel. But what does it actually mean to be alive, and how do we decide what is living and what is not? After a lifetime of studying life, Nobel Prize-winner Sir Paul Nurse, one of the world's leading scientists, has taken on the challenge of defining it. Written with great personality and charm, his accessible guide takes readers on a journey to discover biology's five great building blocks, demonstrates how biology has changed and is changing the world, and reveals where research is headed next. To survive all the challenges that face the human race today - population growth, pandemics, food shortages, climate change - it is vital that we first understand what life is. Never before has the question 'What is life?' been answered with such insight, clarity, and humanity, and never at a time more urgent than now. 'Paul Nurse is about as distinguished a scientist as there could be. He is also a great communicator. This book explains, in a way that is both clear and elegant, how the processes of life unfold, and does as much as science can to answer the question posed by the title. It's also profoundly important, at a time when the world is connected so closely that any new illness can sweep from nation to nation with immense speed, that all of us - including politicians - should be as well-informed as possible. This book provides the sort of clarity and understanding that could save many thousands of lives. I learned a great deal, and I enjoyed the process enormously.' -Sir Philip Pullman 'A nearly perfect guide to the wonder and complexity of existence.' -Bill Bryson 'Nurse provides a concise, lucid response to an age-old question. His writing is not just informed by long experience, but also wise, visionary, and personal. I read the book in one sitting, and felt exhilarated by the end, as though I'd run for miles - from the author's own garden into the interior of the cell, back in time to humankind's most distant ancestors, and through the laboratory of a dedicated scientist at work on what he most loves to do.' -Dava Sobel
John Sulston was director of the Sanger Centre in Cambridge from 1993 to 2000. There he led the British arm of the international team selected to map the entire human DNA sequence, a feat that was pulled off in record time by an extraordinary collaboration of scientists. Despite innumerable setbacks and challenges from outside competitors the ultimate success of the project can be attributed in large part to John Sulston's own determination, passion and scientific excellence. In this personal account he takes us behind the scenes of one of the largest international scientific operations ever undertaken. He is frank about the competition with Craig Venter and Celera Genomics, which threatened to undermine the international community's attempts to make the sequence freely available to everyone. He shares with us his excitement as the project unfolded. And as a pragmatist he reveals his hopes and concerns as to how the information unlocked by the Human Genome Project will affect people's lives in the future. The Common Thread is at once a compelling history of this most exciting of scientific breakthroughs and also an impassioned call for ethical responsibility in scientific research. As the boundaries between science and big business increasingly blur, and researchers race to patent medical discoveries, the international community needs to find a common protocol for the protection of the wider human interest. The Common Thread tells a story of our shared human heritage, offering hope for future research and a fresh outlook on our scientific understanding of ourselves.
Authoritative, thorough, and engaging, Life: The Science of Biology achieves an optimal balance of scholarship and teachability, never losing sight of either the science or the student. The first introductory text to present biological concepts through the research that revealed them, Life covers the full range of topics with an integrated experimental focus that flows naturally from the narrative. This approach helps to bring the drama of classic and cutting-edge research to the classroom - but always in the context of reinforcing core ideas and the innovative scientific thinking behind them. Students will experience biology not just as a litany of facts or a highlight reel of experiments, but as a rich, coherent discipline.
Love, one of the most profound of human emotions, love that accompanies us from puberty to old age, love that follows us from ancient times to modern, from ancient writings, through the Bible and the texts of medieval scribes to modern day books and movies. Through the millennia love has lost none of its secrecy, charm, attractiveness, craziness, even in this digital age, when we are overwhelmed by information. But what is love? Where does this emotion originate? Are we humans the only living beings feeling this emotion? Can love be explained by some chemical reactions in our brains? Is love just a trick of nature or is love some kind of higher feeling? We do not have definite answers to any of these questions, nevertheless, neuroscience, behavioral science and others have provided us with some, at least partial answers. We know today a great deal more than ever before about what is happening in the brain when we are madly in love. We understand why our hearts beat faster when we see the person we love, we know why we sweat and why we feel anxious when the loved one is away from us, and we have some ideas about how feelings of attachment form in the brain. This book guides you through the complicated labyrinth of genes, molecules and brain cells that are involved in the feelings of love, attachment, affection, and also simple sexual reproduction.
Susan Aldridge gives an accessible guide to the world of DNA and also explores the applications of genetic engineering in biotechnology. She takes the reader step by step, through the fascinating study of molecular biology. The first part of the book describes DNA and its function within living organisms. The second part explores genetic engineering and its applications to humans - such as gene therapy, genetic screening and DNA fingerprinting. The third part looks at the wider world of biotechnology and how genetic engineering can be applied to such problems as producing vegetarian cheese or cleaning up the environment. The final part explains how knowledge of the structure and functioning of genes sheds light on evolution and our place in the world. Although easy to read, this book does not avoid the science involved and should be read by anyone who wants to know about DNA and genetic engineering.
