Yes: Spinal muscular atrophy (sma) is caused by a mutation in the survival motor neuron gene 1 (smn1). Most of the time, parents are unaffected and the mutation newly appears in the affected child.
Answered 9/29/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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