{"id":"S85148739","label":"X-ray mutagenesis","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85148739","normalized_label":"x-ray mutagenesis","broader":["http://id.loc.gov/authorities/subjects/sh85089125","http://id.loc.gov/authorities/subjects/sh85110683"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85148739","provider":"lcsh","revision":"522a31ea6dd36b3f","taxonomy_revision":"f050b5d4780b1289","title":"X-ray mutagenesis","url":"/topics/S85148739","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288454693704040964","address_version":"morton4x16-v1","coordinates":[0,20,19729,3072],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}