The fertilization potential is not necessary for the block to polyspermy or the activation of development in the medaka egg.
D000818:Animals; D005260:Female; D005306:Fertilization; D005399:Fishes / Q000196:embryology*; D008297:Male; D008564:Membrane Potentials; D010063:Ovum / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology