Help for this page

Select Code to Download

Select or download this

#!/usr/bin/perl -w
use strict;
...

      return $nstring;
  }

Select or download this

GATTACGNNNNGCGCTCGNNNAACGGCA  #correct
GATTACGAGNNNNNNNCGTGTAANNNNN  #correct
NNNTACGAGTGGCGCTCGTGNNNNNNNN  #correct
NNNNNNNNNNGGNNNNNNNNNNNNNNNN  #wrong