TLS Online TPP Program

#Question id: 6962


In which way is the organizer region of the sea urchin similar to that in frogs?

#5. Developmental Biology
  1. The organizer induces the dorso-ventral axis.
  2. The organizer forms near the dorsal lip of the blastopore.
  3. The organizer accumulates -catenin, which in turn activates the expression of cell-cell signaling molecules.
  4. The organizer will become the mesoderm.