Spemann used his daughter’s hair to aide in his demonstratio…
Spemann used his daughter’s hair to aide in his demonstration that the early newt embryo has an organizing center that is either conditionally or autonomously specified. (4 pts) Explain how the first division had to occur before he separated the two-cell embryo into two individual cells to demonstrate autonomous specification. Explain the molecular signaling that was discovered almost 40 years later to back up Spemann’s experiments that was discussed in class related to frogs.