title: The occurrence of sperm in isohistones H2B in single sea urchins.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D004591:Electrophoresis, Polyacrylamide Gel; D006657:Histones / Q000032:analysis*; D008297:Male; D012617:Sea Urchins; D013094:Spermatozoa / Q000032:analysis*
chemical_list: D006657:Histones