BMJ  2007;335:1299-1301 (22 December), doi:10.1136/bmj.39414.582639.BE

Altered states

Origins of magic: review of genetic and epigenetic effects

Sreeram V Ramagopalan, DPhil candidate1,2, Marian Knight, senior clinical research fellow3, George C Ebers, professor of clinical neurology1,2, Julian C Knight, senior research fellow1

1 Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, 2 Department of Clinical Neurology, University of Oxford, 3 National Perinatal Epidemiology Unit, University of Oxford

Correspondence to: J C Knight julian{at}well.ox.ac.uk

Objective To assess the evidence for a genetic basis to magic.

Design Literature review.

Setting Harry Potter novels of J K Rowling.

Participants Muggles, witches, wizards, and squibs.

Interventions Limited.

Main outcome measures Family and twin studies, magical ability, and specific magical skills.

Results Magic shows strong evidence of heritability, with familial aggregation and concordance in twins. Evidence suggests magical ability to be a quantitative trait. Specific magical skills, notably being able to speak to snakes, predict the future, and change hair colour, all seem heritable.

Conclusions A multilocus model with a dominant gene for magic might exist, controlled epistatically by one or more loci, possibly recessive in nature. Magical enhancers regulating gene expressionmay be involved, combined with mutations at specific genes implicated in speech and hair colour such as FOXP2 and MCR1.


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A Partial Truth
Trevor LP Watts
bmj.com, 21 Dec 2007 [Full text]
Was medical research funding spent on this?
Neil Courtis
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Re: Was medical research funding spent on this?
John Brown
bmj.com, 22 Dec 2007 [Full text]
Re: Was medical research funding spent on this?
Julian C Knight, et al.
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Thanks for this Christmas treat!
Kim Burlingham, et al.
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Further Research - Jedi
Steven A Bland
bmj.com, 28 Dec 2007 [Full text]
much a do about nothing?
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What was the point of this article?
Toby Andrew
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Brilliant!
Elizabeth Engenheiro
bmj.com, 19 Jan 2008 [Full text]
A man who wanted to believe in miracles.
Kazem Zarrabi
bmj.com, 15 Feb 2008 [Full text]



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