A key issue in developmental biology at that time was the problem of how cells underwent differentiation, with most workers concentrating on explanations in terms of changes in enzyme and gene regulation.
AwardsKnight Of The Legion Of Honour; Fellow Of The Royal Society; Albert Lasker Award For Basic Medical Research; Nobel Prize In Physiology Or Medicine; Copley Medal; Royal Medal; Albert Einstein World Award Of Science; Marjory Stephenson Prize;