Multiple Choice
Imagine you are working on a sea urchin embryo after gastrulation has begun.You isolate some of the cells that are inside the blastula.They look unspecialized,but when you culture them in a dish outside of the embryo,they secrete skeletal spicules similar to those they would have eventually formed if they had remained in the embryo.From these results,you could propose that when you isolated these cells,they were already
A) differentiated.
B) undergoing apoptosis.
C) totipotent.
D) fully grown.
E) determined.
Correct Answer:

Verified
Correct Answer:
Verified
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