The Language of the Genes
by Steve Jones
Summary
Jones's governing conceit does real work: genetics is a language, DNA a text copied and miscopied down generations, and the genome therefore a history book, the fullest record humanity carries of where it has been. The book is a tour of what that record says, conducted by a snail geneticist with the best comic timing in British science.
The chapters read the text at every scale. What genes are and how their grammar works; the human family's shallow roots, the surprising genetic closeness of all people and the emptiness of race as biology, a case Jones presses hard and early; the traces migration, conquest and marriage customs leave in blood groups and surnames; the mutations history can date, haemophilia in Victoria's descendants, the diseases of founder populations; sex as genetic conflict; and the coming age, written as the genome project got under way, of reading and perhaps editing the text directly, about which Jones is a genial sceptic, repeatedly deflating both the hype and the panic.
It is a book of essays wearing the costume of a survey, every page carrying an anecdote or a joke that turns out to be a load bearing example, the snails included. The comparison at the centre never strains: languages and genomes both descend, drift apart, borrow, and preserve fossils of their own past, and Jones keeps cashing the metaphor for real explanatory work rather than decoration.
Around three hundred pages.
Best for readers who want the classic general introduction to human genetics as it stood at the genome's threshold, from the field's great explainer.
Historical Context & Significance
The Language of Genes won the Science Book Prize in 1994, and it was already famous in another medium: the book grew from Jones's 1991 Reith Lectures, the BBC's flagship lecture series, whose success had made this snail geneticist from University College London the country's semi official voice of genetics.
The timing was the book's engine. The Human Genome Project was just underway, genetic hype was inflating daily, and Jones's mixture of enthusiasm for the science and mockery of its salesmen, genetics as history rather than destiny, set the tone a generation of British science writing adopted; his insistence that the genetic evidence dissolves rather than supports racial categories became a standard popular statement of that case.
Jones kept the franchise running, In the Blood, Almost Like a Whale, Y: The Descent of Men, and decades of newspaper columns, but this remains the defining book, still the answer when someone asks where to start on human genetics without a textbook.