def add_incomplete_penetrance(genes, alias_genes, hpo_lines):
    """Add information of incomplete penetrance"""
    LOG.info("Add incomplete penetrance info")
    for hgnc_symbol in get_incomplete_penetrance_genes(hpo_lines):
        for hgnc_id in get_correct_ids(hgnc_symbol, alias_genes):
            genes[hgnc_id]['incomplete_penetrance'] = True