def interference_genetic_modification(
        testapp,
        lab,
        award,
        document,
        target):
    item = {
        'award': award['@id'],
        'documents': [document['@id']],
        'lab': lab['@id'],
        'category': 'interference',
        'purpose': 'repression',
        'method': 'RNAi',        
        'modified_site_by_target_id': target['@id']
    }
    return testapp.post_json('/genetic_modification', item).json['@graph'][0]