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10. A strain of frogs has mutations that cause abnormally low expression levels of Wnt inhibitors...

10. A strain of frogs has mutations that cause abnormally low expression levels of Wnt inhibitors yet still properly forms a spinal cord and brain. What other possible mutations might it also have that allow proper brain and spinal cord patterning.

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The possible mutations may occur in the Hedgehog signaling pathway, responsible for transmitting information required to embryonic cells for the cell differentiation. Mutation causes malfunction and development process of various organs.

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