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DNA USA: A Genetic Portrait of America
Ebook Download DNA USA: A Genetic Portrait of America
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Review
“Starred review. Human genetics energetically elucidated, entertaining travel writing, the fascinating personal stories of DNA volunteers, and Sykes’ candid musings on his awakening to the complex emotional and social implications of hidden biological inheritances make for a milestone book guaranteed to ignite spirited discussion.†- Donna Seaman, Booklist“Starred review. Sykes combines history, science, travel and memoir in one grand exposition of what it means to be an “American.†In a graceful text, the author delivers rich images of the American landscape, conversations with strangers, and historic asides on the waves of immigration, the Indian diasporas and the various federal laws that shaped the movements of people across the continent. ...Sykes should also be applauded for his skills as a storyteller, science expositor, travel companion and compassionate human being.†- Kirkus Reviews“An authority on ancient DNA analysis, Sykes provides a nontechnical introduction to how Y chromosomes and mitochondrial DNA may be used to reveal ancestral heritage. Combining in-depth interviews with volunteers along with these genetic techniques, he attempts to create a biological portrait of the United States. Using a travel diary approach to describe his three-month coast-to-coast journey, he introduces the people he meets and reflects on how ancestry and heredity play into our culture, customs, and beliefs. While Sykes acknowledges that the sample is too small to draw significant conclusions, the results provide interesting perspectives on life in early America… These DNA portraits illustrate the complexity of human inheritance and how difficult it is to assign individuals to distinct groups.†- Library Journal“As the author of The Seven Daughters of Eve and other books, Sykes is an old hand at writing about genetics for the general public. His experience shows as he deftly introduces highly technical information in reader-friendly ways… During his journey, Sykes encounters people who embrace DNA testing as a way to clear up messy genealogical records. He also meets skeptics, who see the technology as a way to discredit their cultural heritage. Sykes doesn’t shy away from these criticisms, presenting a well-balanced view of the disparate attitudes.†- Tina Hesman Saey, ScienceNews“It may seem odd for the author of a book on human genetics and heredity to thank his travel agent in the acknowledgments, but in the case of this hybrid work of science and cross-country reportage it’s a fitting gesture… Sykes writes lucidly, creating his own unique mixture in a book that might be described as Travels With Charley meets The Double Helix.†- Abigail Meisel, New York Times Book Review
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About the Author
Bryan Sykes, professor of human genetics at Oxford University, pioneered the use of DNA in exploring the human past. He is the author of Saxons, Vikings, and Celts and the New York Times bestseller The Seven Daughters of Eve.
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Product details
Hardcover: 384 pages
Publisher: Liveright; 1 edition (May 14, 2012)
Language: English
ISBN-10: 0871404125
ISBN-13: 978-0871404121
Product Dimensions:
6.5 x 1.3 x 9.6 inches
Shipping Weight: 1.4 pounds (View shipping rates and policies)
Average Customer Review:
4.0 out of 5 stars
113 customer reviews
Amazon Best Sellers Rank:
#297,240 in Books (See Top 100 in Books)
DNA USA did not meet my expectations as a genetic portrait of America. Perhaps I should have known that was too broad an assignment to pull off successfully in a single book. As a travelogue it did give us a chance to see parts of America through the eyes of a visitor from overseas.Earlier books by Sykes had focused on mitochondrial DNA (Seven Daughters of Eve) and yDNA (Saxons, Vikings and Celts). Each of these books took us deep into the genetic history of first Europe and then the British Isles. Autosomal DNA which only traces the last few generations does not have the capacity to provide that depth of cultural penetration. The small number of persons studied really didn't provide a sample size nearly large enough to paint a serious genetic portrait of a complex society like America.Although the book would have us think that it was carefully researched and reported, this portrait was frayed around the edges. I do not have firsthand knowledge of all the tales which gave context to this book. However, in one case that I did Sykes got the ending wrong in his story of how Family Tree DNA founder Bennett Greenspan came to his opportunity to launch his business that opened the direct to consumer testing of DNA for extending family history research. Quick fact checking with Greenspan and Sykes confirmed this faux pas. This error in no way compromised the central thesis of the book. However, this lack of attention to getting the details right, may me wonder what else might have been incorrect. The manuscript would have benefited from a proofing by an American editor who would have caught the handful of occasions when a city was assigned to the wrong state. Minor stuff really but large enough to cause this reader to be skeptical of the credibility of content about which I had no personal knowledge.
This is the most recent book on genetics by Sykes. I have now read all of his books on this sugject and found each of them as informative and entertaining as previous ones. In addition to this one being another excellent tour of genetics and geneaology it is also a travel log of sorts since his analysis of the genetic history of the USA took him many places to talk about his findings but also on his continuing research for linkages between individual human families and the rest of those among whom they may have wandered, let alone married or left progeny.In this case his searches begin with some anthropological mysteries of the early humans settling the American continent (The Point of Clovis). This early investigation leads him to conclude a somewhat different prehistory of the continent than general opinion. He finds perhaps four human movements converged as first inhabitants of the North American Continent. Of the four mitochondrial clusters he studies a familiar conclusion emerges supporting movement of peoples across the Bering Sea from northeastern Asia but a fourth group perhaps originating in the far east coming here across the Pacific Ocean.Since I appreciate his writings related to my own investigations into my past in believing there may have been more than one strain of ancient human on this continent, I am encouraged to regard, perhaps fantasize is a better word, my distant ancestral past as including those before my personal recorded history beginning in Norway. Having gone as far back as the 1500’s I try to imagine how some even earlier ancestors may have come from the far east during the great migrations of 400 to 600 AD. And then to imagine them moving across the northern parts of the Euro-Asian continent to arrive at the northernmost parts of Scandanavia.Since there are no conclusive answers from such a distant past, his writing is in the form of mysteries he is compelled to solve one way or another. In the process he takes us along on his mental and physical journeys while exploring our ancient history in a geological era immediately following the last ice age about twelve thousand years ago. In the process of this exploration he outlines scenarios of probable behavior of those early inhabitants wandering a new continent of America. These mysteries he relates to contemporary inhabitants whose maladies in the present, such as diabetes among Indians of the Southwest, traceable with a probability to early habits of eating dominated by foods conducive to evolving as a specific physical condition requiring medical treatment. One logical conclusion to our past and its effect on our present diets.He creates imaginative scenarios in his travles that come across as just short of fictional accounts as to how artifacts were left behind as clues to his continuing investigations. These little scenarios contribute both an intriguing sense of the reader being there as a fictional observer but stories conclude with probable histories of earliest ancestors. In this he writes in a manner similar to Peter Ward a palentologist whose scientific journeys around the world are presented as though ‘you are there’ witnessing how ancient ancestors may have behaved and in what physical circumstance they may have been as geological eras came and went.By Chapter five he reaches northern Europe and my specific interests in Scandinavian geneaology. Soon thereafter he moves on to Scotland and the biggest gathering regarding common surnames of almost fifty thousand people from around the world. Next he quickly moves to Jewish and Negro genetic history in the USA. Then follows his travels to meet personally with families and geneaological groups throughout the USA, hence the title “DNA USAâ€. To the end of the book his travels in the USA are both informative and entertaining. Among those he visits are contemporary families whose traditions date back to the Pilgrim Fathers and early Indian tribes.He leaves the reader with some research resources in appendices. There are charts of genetic clusters identified for Native Americans tied back to his seven daughters of Eve as described in his prior book of the same name. Next he presents the chromosomal signatures of the McDonald clan and finally the 146 genes related to individual human bodily functions.All in all this is a good reference book as well as simply entertaining and informative reading.
An enjoyable travel log! Sykes is very up front about the lack good sample sizes in his work and he doesn't try (in most cases) to extend his findings to America in general. What he does demonstrate is that many people are definitely a patchwork of genes inherited from many ancestors, some of them surprises. Especially interesting to me was the section on how different genes were responsible for different body parts. An African ancestor can be the source of a pancreas...or a heart. Tribal descendants via their genealogy may have little if any tribal genes left in their bodies. A bit heavy on the Native America sections and obviously Sykes treats these groups with kid gloves. Sad to see, however, that a general lack of knowledge about science in many groups is preventing useful medical and genealogical information from emerging. I was particularly interested in the one gene that an apparently "white" person had inherited from an African ancestror which would make her react differently to a malaria drug. All in all, an enjoyable read and travel log.
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