def METHOD_NAME(dna):
    """
  For each gene in the DNA, there is a 1/mutation_chance chance that it will be
  switched out with a random character. This ensures diversity in the
  population, and ensures that is difficult to get stuck in local minima.
  """
    dna_out = ""
    mutation_chance = 100
    for c in range(DNA_SIZE):
        if int(random.random() * mutation_chance) == 1:
            dna_out += random_char()
        else:
            dna_out += dna[c]
    return dna_out