Well, some programs are already written in Perl and are available for free (http://bioperl.org)
Sorry if my advice was wrong.

In reply to Re: Is it possible to earn money selling perl scripts on genetics, molecular biology etc.? If yes, what are the sources? by aitap
in thread Is it possible to earn money selling perl scripts on genetics, molecular biology etc.? If yes, what are the sources? by supriyoch_2008

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