You are correct, but when the automated sequencers can not unambiguously choose the A,C,T,or G, they assign 'N'.

My chosen example sequences were from the beginning of a sequence file. PolyA stretches are found at the end.

Cheers, and thank you in advance!

In reply to Re: Re: Re: Re: BioInformatics - polyA tail search by MiamiGenome
in thread BioInformatics - polyA tail search by MiamiGenome

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