Letter: In defence of Dawkins's genes

William Hoppitt
Saturday 18 January 1997 19:02 EST
Comments

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

Brian Josephson (Letters, 12 January) misunderstands Richard Dawkins. The selfish gene theory doesn't require "a direct correspondence between specific behaviours and specific genes". A gene's direct effect is to synthesise a protein, which indirectly affects physiology and behaviour. A specific behaviour pattern can be statistically more common with a particular gene than without it. This is all that is required for that gene to be selected; if the behaviour aids the survival and/or reproduction of that gene, it becomes more numerous in the gene pool.

The term "a gene for" is often used, which is not genetic determinism but shorthand for "a gene making [a specific behaviour] more frequent than it would be without the gene".

In fact, such "genes for [a specific behaviour]", aren't usually real, known genes, but hypothetical genes, used to show how any DNA "causing" the certain behaviour would spread throughout the gene pool.

William Hoppitt

Fiskerton, Nottinghamshire

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in