Best of
Genetics

2018

She Has Her Mother's Laugh: The Powers, Perversions, and Potential of Heredity


Carl Zimmer - 2018
    Charles Darwin played a crucial part in turning heredity into a scientific question, and yet he failed spectacularly to answer it. The birth of genetics in the early 1900s seemed to do precisely that. Gradually, people translated their old notions about heredity into a language of genes. As the technology for studying genes became cheaper, millions of people ordered genetic tests to link themselves to missing parents, to distant ancestors, to ethnic identities. . . .But, Zimmer writes, "Each of us carries an amalgam of fragments of DNA, stitched together from some of our many ancestors. Each piece has its own ancestry, traveling a different path back through human history. A particular fragment may sometimes be cause for worry, but most of our DNA influences who we are--our appearance, our height, our penchants--in inconceivably subtle ways." Heredity isn't just about genes that pass from parent to child. Heredity continues within our own bodies, as a single cell gives rise to trillions of cells that make up our bodies. We say we inherit genes from our ancestors--using a word that once referred to kingdoms and estates--but we inherit other things that matter as much or more to our lives, from microbes to technologies we use to make life more comfortable. We need a new definition of what heredity is and, through Carl Zimmer's lucid exposition and storytelling, this resounding tour de force delivers it. Weaving historical and current scientific research, his own experience with his two daughters, and the kind of original reporting expected of one of the world's best science journalists, Zimmer ultimately unpacks urgent bioethical quandaries arising from new biomedical technologies, but also long-standing presumptions about who we really are and what we can pass on to future generations.

Who We Are and How We Got Here: Ancient DNA and the New Science of the Human Past


David Reich - 2018
    Now, in The New Science of the Human Past, Reich describes just how the human genome provides not only all the information that a fertilized human egg needs to develop but also contains within it the history of our species. He delineates how the Genomic Revolution and ancient DNA are transforming our understanding of our own lineage as modern humans; how genomics deconstructs the idea that there are no biologically meaningful differences among human populations (though without adherence to pernicious racist hierarchies); and how DNA studies reveal the deep history of human inequality--among different populations, between the sexes, and among individuals within a population.

Innate: How the Wiring of Our Brains Shapes Who We Are


Kevin J. Mitchell - 2018
    Guiding us through important new research, including his own groundbreaking work, he explains how variations in the way our brains develop before birth strongly influence our psychology and behavior throughout our lives, shaping our personality, intelligence, sexuality, and even the way we perceive the world.We all share a genetic program for making a human brain, and the program for making a brain like yours is specifically encoded in your DNA. But, as Mitchell explains, the way that program plays out is affected by random processes of development that manifest uniquely in each person, even identical twins. The key insight of Innate is that the combination of these developmental and genetic variations creates innate differences in how our brains are wired--differences that impact all aspects of our psychology--and this insight promises to transform the way we see the interplay of nature and nurture.Innate also explores the genetic and neural underpinnings of disorders such as autism, schizophrenia, and epilepsy, and how our understanding of these conditions is being revolutionized. In addition, the book examines the social and ethical implications of these ideas and of new technologies that may soon offer the means to predict or manipulate human traits.

Gene Machine: The Race to Decipher the Secrets of the Ribosome


Venki Ramakrishnan - 2018
    But by itself, DNA is just an inert blueprint for life. It is the ribosome--an enormous molecular machine made up of a million atoms--that makes DNA come to life, turning our genetic code into proteins and therefore into us. Gene Machine is an insider account of the race for the structure of the ribosome, a fundamental discovery that both advances our knowledge of all life and could lead to the development of better antibiotics against life-threatening diseases. But this is also a human story of Ramakrishnan's unlikely journey, from his first fumbling experiments in a biology lab to being the dark horse in a fierce competition with some of the world's best scientists. In the end, Gene Machine is a frank insider's account of the pursuit of high-stakes science.

Resurrection Lily: The BRCA Gene, Hereditary Cancer & Lifesaving Whispers from the Grandmother I Never Knew


Amy Byer Shainman - 2018
    As Amy Byer Shainman discovers she has inherited a BRCA gene mutation that puts her at high risk of developing certain cancers, she struggles to come to terms with preventively removing her breasts when she does not have a breast cancer diagnosis. Through her experience making decisions about her health, Amy becomes invigorated with purpose and establishes herself as a leading advocate for those with BRCA and other hereditary cancer syndromes, tirelessly working to educate others facing the same daunting reality.Painting a timely and moving portrait of what it feels like to carry a BRCA gene mutation, Resurrection Lily provides firsthand insight into the patient experience. Weaved throughout Amy's open and vulnerable story is the expertise of her doctors, education from top medical experts in cancer genetics, and whispered lifesaving guidance from her grandmother Lillian.

Blueprint: How DNA makes us who we are


Robert Plomin - 2018
    Our intellectual capacity, our introversion or extraversion, our vulnerability to mental illness, even whether we are a morning person - all of these aspects of our personality are profoundly shaped by our inherited DNA differences.In Blueprint, Robert Plomin, a pioneer in the field of behavioural genetics, draws on a lifetime's worth of research to make the case that DNA is the most important factor shaping who we are. Our families, schools and the environment around us are important, but they are not as influential as our genes. This is why, he argues, teachers and parents should accept children for who they are, rather than trying to mould them in certain directions. Even the environments we choose and the signal events that impact our lives, from divorce to addiction, are influenced by our genetic predispositions. Now, thanks to the DNA revolution, it is becoming possible to predict who we will become, at birth, from our DNA alone. As Plomin shows us, these developments have sweeping implications for how we think about parenting, education, and social mobility.A game-changing book by a leader in the field, Blueprint shows how the DNA present in the single cell with which we all begin our lives can impact our behaviour as adults.

The Tangled Tree: A Radical New History of Life


David Quammen - 2018
    In the mid-1970s, scientists began using DNA sequences to reexamine the history of all life. Perhaps the most startling discovery to come out of this new field—the study of life’s diversity and relatedness at the molecular level—is horizontal gene transfer (HGT), or the movement of genes across species lines. It turns out that HGT has been widespread and important. For instance, we now know that roughly eight percent of the human genome arrived not through traditional inheritance from directly ancestral forms, but sideways by viral infection—a type of HGT.David Quammen chronicles these discoveries through the lives of the researchers who made them—such as Carl Woese, the most important little-known biologist of the twentieth century; Lynn Margulis, the notorious maverick whose wild ideas about “mosaic” creatures proved to be true; and Tsutomu Wantanabe, who discovered that the scourge of antibiotic-resistant bacteria is a direct result of horizontal gene transfer, bringing the deep study of genome histories to bear on a global crisis in public health.

Molecular Population Genetics


Matthew W. Hahn - 2018
    Combining advances in molecular biology and genomics with mathematical and empirical findings from population genetics, work in molecular population genetics has uncovered theextraordinary history of natural selection and demographic shifts in many organisms, including humans. While basic descriptions of the methods and tools of this field can be found in disparate places, no previous book has brought them together in a single volume. Rather than cobble together piecesfrom books, reviews, and primary research articles, Molecular Population Genetics presents a coherent user's guide to the field. Intended as a text for upper-level undergraduate and graduate students, the book will also be useful as a detailed reference for active professionals.

Live Long and Evolve: What Star Trek Can Teach Us about Evolution, Genetics, and Life on Other Worlds


Mohamed A.F. Noor - 2018
    Throughout these remarkable space adventures, does Star Trek reflect biology and evolution as we know it? What can the science in the science fiction of Star Trek teach us? In Live Long and Evolve, biologist and die-hard Trekkie Mohamed Noor takes readers on a fun, fact-filled scientific journey.Noor offers Trekkies, science-fiction fans, and anyone curious about how life works a cosmic gateway into introductory biology, including the definitions and origins of life, DNA, reproduction, and evolutionary processes, such as natural selection and genetic drift. For instance, he shows how the rapid change in a population of nanite robots follows basic principles of natural selection that apply to species on Earth. He explains how certain creatures depicted in the series are bisexual, not asexual, and what evolutionary advantage that difference provides. And he considers factors that affect successful interspecies mating and delves into what keeps species distinct. Noor discusses the importance of research and how Star Trek has influenced scientists to engage in cutting-edge work.Giving readers irresistible and entertaining insights, Live Long and Evolve looks at some of the powerful science behind one of the most popular and longest-running science-fiction series.

Across the Bridge: Understanding the Origin of the Vertebrates


Henry Gee - 2018
    Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain—from sea-squirts to starfish—the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide—and how far we still have to go.

FINDING THE CHROMOSOME X


PINKY BAHROOS - 2018
    Yes!! Details about it, you will get easily on the internet. But do you want to know how it is living with Turners Syndrome? Then this book is for you. Yes, this is my story, written in simple language to create awareness. I leave it for you to decide whether my life is a boon or a curse. Whether the steps I took were right or wrong? Whether my viewpoint is right or wrong? Whether I found the missing Chromosome X or not??

Choosing Down Syndrome: Ethics and New Prenatal Testing Technologies


Chris Kaposy - 2018
    In Choosing Down Syndrome, Chris Kaposy offers a carefully reasoned ethical argument in favor of choosing to have such a child. Arguing from a pro-choice, disability-positive perspective, Kaposy makes the case that there is a common social bias against cognitive disability that influences decisions about prenatal testing and terminating pregnancies, and that more people should resist this bias by having children with Down syndrome.Drawing on accounts by parents of children with Down syndrome, and arguing for their objectivity, Kaposy finds that these parents see themselves and their families as having benefitted from having a child with Down syndrome. To counter those who might characterize these accounts as based on self-deception or expressing adaptive preference, Kaposy cites supporting evidence, including divorce rates and observational studies showing that families including children with Down syndrome typically function well. Himself the father of a child with Down syndrome, Kaposy argues that cognitive disability associated with Down syndrome does not lead to diminished well-being. He argues further that parental expectations are influenced by neoliberal ideologies that unduly focus on the supposed diminished economic potential of a person with Down syndrome.Kaposy does not advocate restricting access to abortion or prenatal testing for Down syndrome, and he does not argue that it is ethically mandatory in all cases to give birth to a child with Down syndrome. People should be free to make important decisions based on their values. Kaposy's argument shows that it may be consistent with their values to welcome a child with Down syndrome into the family.