Hi ,

The $gene1 , did you think of doing this

     my $gene1 = $query->param('GS1');
     @gene1 = split('',$gene1);
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is the STDOUT an explicit file handler, if so the name should be different , else if you have to print it out the default is STDOUT ,the use is redundant .to note, the split is actually on a string and not an array