title: So what exactly is the role of the spermatozoon in first cleavage?
authors.affiliation: Department of Anatomy, Downing Street. Cambridge CB2 3DY, UK.
authors.forename: Martin H
authors.initials: MH
authors.lastname: Johnson
mesh_terms: D000818:Animals; D002455:Cell Division / Q000502:physiology; D016764:Cell Polarity / Q000502:physiology; D002970:Cleavage Stage, Ovum; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D005260:Female; D005306:Fertilization; D008297:Male; D051379:Mice; D008954:Models, Biological; D010063:Ovum / Q000502:physiology*; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa / Q000502:physiology*; D015053:Zygote