When DNA samples are sent to a sequencing facility the return are files with information. The specific files that a researcher receives are called electropherograms ("recordings of the separated components of mixtures produced by electrophoresis”).
We did a basic analysis of some electropherograms of the Ribonucleotide Reductase Small Subunit (RRss) gene from animals of several phyla. We saved the information in fasta format and did a multiple sequence alignment using ClustalW. We generated a nexus file which was finally used to do crude phylogenetic analyses using the software package PHYLIP on the web.
The exercise was just an example of one of the many possible sequences of steps that can be followed to analyze genetic information. The main point was to go from electropherograms to analysis, even though the ways to analyze DNA sequence data are far too many to cover in a single lab.
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