We do some experiments in humans, some in mice, and there are some questions that can only be answered in nonhuman primates. It's true that you can't immediately say that those experiments will translate into human health, but nevertheless, it is obvious that having an understanding of human memory is going to be important for human health.

The question is, are there useful things that we can do with the results of a genome sequence that would bring benefit? And the answer is, today, should the majority of people go and have their genome sequenced? Probably not. But are there particular circumstances in which genome sequencing is really helpful? Yes, there are.

I was always taught at medical school that you should never do a test unless you could do something with the result.

Mark Walport Quotes