private static boolean testGenotypesfileCaption(String s, int homolog) {
        if (s==null || s.length()<3) return false;
        if (s.charAt(s.length()-2) != HOMOLOG_SEPARATOR) return false;
        try {
            int p = Integer.parseInt(s.substring(s.length()-1));
            if (p != homolog) return false;
            return true;
        } catch (Exception ex) {return false;}
    } //testGenotypesfileCaption