title: Multicellularity: evolution and the egg.
authors.affiliation: Department of Anatomy and Developmental Biology, University College London, UK.
authors.forename: Lewis
authors.initials: L
authors.lastname: Wolpert
authors.forename: Eörs
authors.initials: E
authors.lastname: Szathmáry
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002454:Cell Differentiation; D005260:Female; D006829:Hydra / Q000166:cytology / Q000235:genetics / Q000502:physiology; D008297:Male; D009154:Mutation; D010063:Ovum / Q000166:cytology* / Q000502:physiology*; D012098:Reproduction / Q000235:genetics; D012100:Reproduction, Asexual / Q000235:genetics; D013094:Spermatozoa / Q000502:physiology