Morphological changes of the surface of the egg of Xenopus laevis in the course of development. III. Scanning electron microscopy of gastrulation.
D000818:Animals; D002455:Cell Division; D002465:Cell Movement; D005260:Female; D008648:Mesoderm / Q000648:ultrastructure; D014981:Xenopus; D015053:Zygote / Q000648:ultrastructure*