Asked by: cassjamminx
Great question! I’ve been searching online and can’t arrive at a solid answer. I personally don’t know, but from what I’ve read I think it’s the number of tandem repeats that triggers the disease… For example, people with +40 tandem repeats usually develop the disease while people with 36-40 repeats may or may not develop the disease.
Here’s the link I found useful: http://ghr.nlm.nih.gov/condition/huntington-disease