Relation between fertilization rate and penetration of eggs by supplementary spermatozoa in different mouse strains and crosses.
D000818:Animals; D003433:Crosses, Genetic; D005260:Female; D005306:Fertilization; D008297:Male; D051379:Mice; D010063:Ovum / Q000166:cytology; D013045:Species Specificity; D013094:Spermatozoa