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Meet Varun: A PhD student researching the genetics of autism.

Varun Warrier grew up in southern India and is now a PhD student at St John's researching the genetics of autism. 

In this short film, he tells us about how genetics have, over the past 20 years, played an increasingly important part in the study of autism and the management of the condition. We also see an example of one of his more recent research projects, in which DNA was collected from a large number of subjects using saliva samples, and then compared with the results of an online test examining individuals' responses to the emotional states of other people.