title: Methods for quantitating sea urchin sperm-egg binding.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002118:Calcium / Q000494:pharmacology; D005260:Female; D005306:Fertilization; D005557:Formaldehyde; D006863:Hydrogen-Ion Concentration; D008297:Male; D008722:Methods; D008858:Microscopy, Phase-Contrast; D010063:Ovum / Q000502:physiology*; D010783:Photometry; D011402:Pronase; D012617:Sea Urchins / Q000502:physiology*; D012623:Seawater; D013094:Spermatozoa / Q000502:physiology*; D013997:Time Factors; D014817:Vitelline Membrane
chemical_list: D005557:Formaldehyde; D011402:Pronase; D002118:Calcium