New Zealand Listener

The G factor

Two sociologis­ts explore what the explosion of genome informatio­n actually means for us.

- By VERONIKA MEDUNA

Fourteen years ago, it cost $2.7 billion to complete the human genome project. Today, you can post a cheek swab and get your own DNA sequenced for about $100 – and the number of people queueing up for the service is rising as the price is falling.

During the same period, we have also learnt that the line between a gene and an outcome is never straight, but instead shaped by the experience­s we encounter in life. THE GENOME FACTOR (Princeton University Press, $35) offers a fresh perspectiv­e on the subtleties of this nature/nurture interplay from a social-science vantage point. It explores what the explosion of genome informatio­n actually means for us – as individual­s and as communitie­s. And it asks whether we could be heading towards a genotocrac­y, a society led by those with genetic advantages and the means to select the genetics of their offspring.

The authors, Princeton University sociologis­t Dalton Conley and University of Wisconsin sociologis­t/economist Jason Fletcher, acknowledg­e the uneasy history of collaborat­ion between biologists and social scientists. There’s more than a century of bad examples, from social Darwinism to eugenics. However, they argue that because genes are no longer seen as determinis­tic factors, social sciences can (and should) use genetics to explore broader issues of social inequality, racial discrimina­tion and economic outcomes.

The book takes the debate beyond the more frequently examined health implicatio­ns of genomics to an illuminati­ng discussion about genetics and race. It debunks any notion of genetic superiorit­y and offers a useful reminder that the original population that emerged from Africa was so small, it created a genetic bottleneck – making us all the genetic equivalent of second cousins.

The Genome Factor is timely and generally well written, but it is neverthele­ss hard going. Repeatedly, the authors butt up against and debunk arguments made in the 1994 book The Bell Curve, which creates the unnecessar­y impression of a scholarly dispute, when in fact this is a discussion that needs to exit academia and enter the public sphere.

History, travel and mathematic­s meet in

FINDING FIBONACCI (Princeton University

Press, $29.95), the latest offering by American Public Radio’s “Math Guy”, Keith Devlin.

Six years after the publicatio­n of The Man of Numbers, Devlin’s biography of 13th-century Italian mathematic­ian Leonardo Fibonacci, this volume recounts the author’s decade-long quest to find every bit of informatio­n to piece together Fibonacci’s life beyond maths.

In both books, Devlin celebrates Fibonacci as a founding father of modern economics. By introducin­g the Western world to the HinduArabi­c system of arithmetic, Fibonacci switched tracks from ancient finger maths and the mechanical abacus to a method that used numbers and provided the first audit trail. This in turn opened the door to global trade and finance.

Finding Fibonacci begins in Pisa, Leonardo’s hometown and a major trade link between Europe and the Arab world at the time. From there, Devlin travels the world to meet other scholars, translator­s and historians in pursuit of Fibonacci – and in recounting the journey, he shares as much about himself as his mathematic­al hero.

It asks whether we could be heading towards a society led by those with genetic advantages and the means to select the genetics of their offspring.

 ??  ?? A cross section of
a nautilus shell, showing chambers and the Fibonacci
sequence. Inset, Italian mathematic­ian
Leonardo Fibonacci.
A cross section of a nautilus shell, showing chambers and the Fibonacci sequence. Inset, Italian mathematic­ian Leonardo Fibonacci.
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