title: Chicken or egg--Weismann revisited.
authors.affiliation: , Weinheim, Germany, peter.nick@kit.edu.
authors.forename: Peter
authors.initials: P
authors.lastname: Nick
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000235:genetics* / Q000502:physiology; D002455:Cell Division / Q000235:genetics* / Q000502:physiology; D006801:Humans; D009024:Morphogenesis / Q000235:genetics / Q000502:physiology