What is the function of the 'Spemann-Mangold Organizer' in amphibian embryos?
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Correct answer: Inducing the neural tube and dorsal structures
The Spemann-Mangold Organizer, located at the dorsal lip of the blastopore, secretes inhibitory signals such as Chordin and Noggin that block BMP activity. This allows the overlying ectoderm to adopt a neural fate, forming the neural tube and establishing the dorsal body axis.
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