%0 Journal Article %T Problems And Paradigms: Metaphors and the role of genes in development %A Nijhout, H. F. %J BioEssays %V 12 %N 9 %P 441-446 %@ 0265-9247 %D 1990-09-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve