title: Nuclear-protein changes in the first cleavage cycle in fertilized sea-urchin eggs [proceedings].
mesh_terms: D000818:Animals; D002455:Cell Division; D002467:Cell Nucleus / Q000378:metabolism*; D004247:DNA / Q000096:biosynthesis; D005260:Female; D006657:Histones / Q000378:metabolism; D009698:Nucleoproteins / Q000378:metabolism*; D012617:Sea Urchins; D015053:Zygote / Q000378:metabolism*
chemical_list: D006657:Histones; D009698:Nucleoproteins; D004247:DNA