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I can understand the allele notation when is in the form rs8176719(T;T) or rs8176719(G) but recently i found this ones rs8176719(T;-) or rs8176719(-;T).

So im confused, rs8176719(T;-) is the same as rs8176719(T)? or is the location is important ?

Thanks .

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The '-' means that that allele has a single base deletion.

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