Genetics and the Search for Modern Human Origins

Genetics and the Search for Modern Human Origins PDF Author: John H. Relethford
Publisher: Wiley-Liss
ISBN: 9780471384137
Category : Science
Languages : en
Pages : 264

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Book Description
A major debate in anthropology concerns the relationship between anatomically modern humans and earlier "archaic" humans including the Neandertals. What was the origin of modern humans? Did we arise as a new species in Africa 200,000 years ago and then replace archaic human populations outside of Africa, or are our origins part of a single evolving lineage extending back over the past two million years? In addition to fossil and archaeological evidence, anthropologists have increasingly turned to using genetic data on living populations to address this question. Patterns of genetic variation within and between living human populations are felt to contain clues as to our species' evolutionary history, and provide a reflection of the past. This book reviews the modern human origins debate focusing on the genetic evidence relating to our origins, including genetic variation in living humans and recent discoveries of ancient DNA from fossil specimens. Following a brief introduction to the problem and a review of evolutionary genetics, the book focuses on gene trees and the search for a common ancestor, genetic diversity within populations, genetic distances between populations, the use of genetic data to reconstruct ancient demography, and Neandertal DNA. The main point of the text is that although the genetic data are often compatible with a replacement model, they are also compatible with some multiregional models. The concluding chapter makes the case that modern human origins are mostly, but not exclusively, out of Africa.

Genetics and the Search for Modern Human Origins

Genetics and the Search for Modern Human Origins PDF Author: John H. Relethford
Publisher: Wiley-Liss
ISBN: 9780471384137
Category : Science
Languages : en
Pages : 264

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Book Description
A major debate in anthropology concerns the relationship between anatomically modern humans and earlier "archaic" humans including the Neandertals. What was the origin of modern humans? Did we arise as a new species in Africa 200,000 years ago and then replace archaic human populations outside of Africa, or are our origins part of a single evolving lineage extending back over the past two million years? In addition to fossil and archaeological evidence, anthropologists have increasingly turned to using genetic data on living populations to address this question. Patterns of genetic variation within and between living human populations are felt to contain clues as to our species' evolutionary history, and provide a reflection of the past. This book reviews the modern human origins debate focusing on the genetic evidence relating to our origins, including genetic variation in living humans and recent discoveries of ancient DNA from fossil specimens. Following a brief introduction to the problem and a review of evolutionary genetics, the book focuses on gene trees and the search for a common ancestor, genetic diversity within populations, genetic distances between populations, the use of genetic data to reconstruct ancient demography, and Neandertal DNA. The main point of the text is that although the genetic data are often compatible with a replacement model, they are also compatible with some multiregional models. The concluding chapter makes the case that modern human origins are mostly, but not exclusively, out of Africa.

Origin

Origin PDF Author: Jennifer Raff
Publisher: Twelve
ISBN: 153874970X
Category : Science
Languages : en
Pages : 304

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Book Description
AN INSTANT NEW YORK TIMES BESTSELLER! From celebrated anthropologist Jennifer Raff comes the untold story—and fascinating mystery—of how humans migrated to the Americas. ORIGIN is the story of who the first peoples in the Americas were, how and why they made the crossing, how they dispersed south, and how they lived based on a new and powerful kind of evidence: their complete genomes. ORIGIN provides an overview of these new histories throughout North and South America, and a glimpse into how the tools of genetics reveal details about human history and evolution. 20,000 years ago, people crossed a great land bridge from Siberia into Western Alaska and then dispersed southward into what is now called the Americas. Until we venture out to other worlds, this remains the last time our species has populated an entirely new place, and this event has been a subject of deep fascination and controversy. No written records—and scant archaeological evidence—exist to tell us what happened or how it took place. Many different models have been proposed to explain how the Americas were peopled and what happened in the thousands of years that followed. A study of both past and present, ORIGIN explores how genetics is currently being used to construct narratives that profoundly impact Indigenous peoples of the Americas. It serves as a primer for anyone interested in how genetics has become entangled with identity in the way that society addresses the question "Who is indigenous?"

Mapping Human History

Mapping Human History PDF Author: Steve Olson
Publisher: Bloomsbury Publishing
ISBN: 9780747560166
Category : Human beings
Languages : en
Pages : 292

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Book Description
Until just a few years ago, we knew surprisingly little about the 150,000 or so years of human existence before the advent of writing. Some of the most momentous events in our past - including our origins, our migrations across the globe, and our acquisition of language - were veiled in the uncertainty of 'prehistory'. That veil is being lifted at last by geneticists and other scientists. Mapping Human History is nothing less than an astonishing 'history of prehistory'. Steve Olson travelled through four continents to gather insights into the development of humans and our expansion throughout the world. He describes, for example, new thinking about how centres of agriculture sprang up among disparate foraging societies at roughly the same time. He tells why most of us can claim Julius Caesar and Confucius among our forebears. He pinpoints why the ways in which the story of the Jewish people jibes with, and diverges from, biblical accounts. And using very recent genetic findings, he explodes the myth that human races are a biological reality.

Genetics and the Origin of Species

Genetics and the Origin of Species PDF Author: Theodosius Dobzhansky
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 364

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Book Description


The Origins and Possibilities of Genetics

The Origins and Possibilities of Genetics PDF Author: Pravir Malik
Publisher: Possibilities Publishing
ISBN: 1798424363
Category : Science
Languages : en
Pages : 300

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Book Description
This book will explore the notion of content in Light as the origin of genetics, the process of precipitation of Light and the subsequent and mathematical creation of subtle-DNA replete with infinite four-base logic-ecosystems as the origin of genetic structure and heredity, and quantum computation and its intimate relationship with the structure and evolution in matter as the origin of genetic mutation and all further genetic and post-genetic possibility.

A History of Genetics

A History of Genetics PDF Author: Alfred Henry Sturtevant
Publisher: CSHL Press
ISBN: 9780879696078
Category : Medical
Languages : en
Pages : 190

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Book Description
In the small “Fly Room†at Columbia University, T.H. Morgan and his students, A.H. Sturtevant, C.B. Bridges, and H.J. Muller, carried out the work that laid the foundations of modern, chromosomal genetics. The excitement of those times, when the whole field of genetics was being created, is captured in this book, written in 1965 by one of those present at the beginning. His account is one of the few authoritative, analytic works on the early history of genetics. This attractive reprint is accompanied by a website, http://www.esp.org/books/sturt/history/ offering full-text versions of the key papers discussed in the book, including the world's first genetic map.

History of Human Genetics

History of Human Genetics PDF Author: Heike I. Petermann
Publisher: Springer
ISBN: 331951783X
Category : Medical
Languages : en
Pages : 562

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Book Description
Written by 30 authors from all over the world, this book provides a unique overview of exciting discoveries and surprising developments in human genetics over the last 50 years. The individual contributions, based on seven international workshops on the history of human genetics, cover a diverse range of topics, including the early years of the discipline, gene mapping and diagnostics. Further, they discuss the status quo of human genetics in different countries and highlight the value of genetic counseling as an important subfield of medical genetics.

A Brief History of Genetics

A Brief History of Genetics PDF Author: Chris Rider
Publisher: Cambridge Scholars Publishing
ISBN: 1527561305
Category : Science
Languages : en
Pages : 514

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Book Description
Biological inheritance, the passage of key characteristics down the generations, has always held mankind’s fascination. It is fundamental to the breeding of plants and animals with desirable traits. Genetics, the scientific study of inheritance, can be traced back to a particular set of simple but ground-breaking studies carried out 170 years ago. The awareness that numerous diseases are inherited gives this subject considerable medical importance. The progressive advances in genetics now bring us to the point where we have unravelled the entire human genome, and that of many other species. We can intervene very precisely with the genetic make-up of our agricultural crops and animals, and even ourselves. Genetics now enables us to understand cancer and develop novel protein medicines. It has also provided us with DNA fingerprinting for the solving of serious crime. This book explains for a lay readership how, where and when this powerful science emerged.

The Origins of Theoretical Population Genetics

The Origins of Theoretical Population Genetics PDF Author: William B. Provine
Publisher: University of Chicago Press
ISBN: 022678892X
Category : Science
Languages : en
Pages : 224

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Book Description
Tracing the development of population genetics through the writings of such luminaries as Darwin, Galton, Pearson, Fisher, Haldane, and Wright, William B. Provine sheds light on this complex field as well as its bearing on other branches of biology.

A Short History of Medical Genetics

A Short History of Medical Genetics PDF Author: Peter S. Harper
Publisher: Oxford University Press
ISBN: 0195187504
Category : Language Arts & Disciplines
Languages : en
Pages : 570

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Book Description
"This book traces the development of genetics in medicine from the first descriptions of inherited diseases more than 300 years ago to the new applications resulting from mapping and sequencing the human genome. It follows both the scientific and the medical advances, focusing especially on those of the past 50 years, which have seen the field of medical genetics emerge as one of the foremost and most rapidly changing medical specialties, now influencing the whole of medicine. It also examines the ethical challenges faced by those working in the field, and describes some of the past disasters that have resulted from these being ignored, notably the abuses of eugenics and the catastrophic destruction of genetics in Soviet Russia. This is the first book of its kind; it is clearly and simply written, and will be valuable to all those who have an interest or concern in the development of medical genetics, as well as those actually working in the field. Historians and social scientists will likewise find this book an important foundation for future detailed studies, which are urgently needed."--BOOK JACKET.