Microinjection of the live spermatozoa into sea urchin eggs.
D000818:Animals; D002455:Cell Division; D004447:Echinodermata; D008297:Male; D008845:Microinjections; D010063:Ovum; D012617:Sea Urchins; D013094:Spermatozoa
CELL DIVISION; ECHINODERMATA; OVUM; SPERMATOZOA