If a moderate level of Shh expression was expressed throughout the axis of the spinal cord, what would you expect to happen?

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Answer

Transcription factors that normally inhibit expression would activate expression instead

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Motor neurons would develop across the dorsal-ventral axis, and fewer interneurons

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There would be an expansion of interneurons, and inhibition of motor neuron development

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There would be a reduction of BMP signalling from the notochord and floor plate

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