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It appeared, then, that something in the region of the gray crescent was essential for proper embryonic development. But how did it function? What role did it play in normal development?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter43: Animal Reproduction And Development

Section: Chapter Questions

Problem 44CTQ: Explain the role of axis formation in development.

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