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##Obtain an RDP alignment  The goal of this section is to obtain a 16S an  alignment of 16S rRNA gene sequences  from RDP that can be used to build a tree. This procedure has the added benefit of providing an independent verification of the taxonomic assignment of your sequence based on the BLAST results. 1. Go to [http://rdp.cme.msu.edu](http://rdp.cme.msu.edu)   2. Create an account