Interviewee, John Sulston. John Sulston talks about gene hierarchy.

I think it's very important to bear in mind too that we don't know, it doesn't make any difference to our view whether it's a hundred thousand or thirty thousand, what our view should be, because we don't know how the genes operate and in particular we don't know how they fit together in hierarchies. The thing that, that counts is not the number of genes, but the number of different cascades you can make from them, because what happens is that in the control of human development one gene turns on other genes, turns on other genes, turns on other genes, there's a whole sort of management hierarchy.

john sulston,management hierarchy,hierarchies,genes,hundred thousand,dna