A member asked:

Do you know if amyotrophic lateral sclerosis is sex linked or a chromosomal error?

2 doctors weighed in across 2 answers

Still uncertain: It appears genetically linked, but not all patients have the same abnormality. The cause is still under investigation: http://en.wikipedia.org/wiki/Amyotrophic_lateral_sclerosis

Answered 7/24/2014

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Possible: About 10% of cases of ALS are familial, and 30% of these are due to mutations of the gene than encodes copper/zinc superoxide dysmutase.

Answered 8/16/2014

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