In the early development of an amphibian embryo, Spemann's "organizer" is located in the
A)neural tube.
B)notochord.
C)archenteron roof.
D)dorsal ectoderm.
E)dorsal lip of the blastopore.

Question

Quizplus · Accepted Answer

Spemann's "organizer" is located in the dorsal lip of the blastopore in early amphibian embryos. This organizer region is responsible for inducing and patterning other nearby cells, and its discovery helped to lay the foundation for the study of developmental biology.

In the Early Development of an Amphibian Embryo, Spemann's "Organizer