[Explants of the 1st 4 macromeres of Bufo arenarum eggs].
D000818:Animals; D002022:Bufo arenarum / Q000196:embryology*; D005260:Female; D005854:Germ Cells; D005855:Germ Layers; D010063:Ovum / Q000166:cytology*
Explante de los primeros cuatro macrómeros en huevos de Bufo arenarum.