# Embryonic periodicity { "id": "S92002584", "title": "Embryonic periodicity", "url": "/topics/S92002584", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "01c8979164b90c90", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "5530495401330869762", "address_version": "morton4x16-v1", "coordinates": [ 0, 21, 61284, 24576 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Here are entered works on the development of patterns with repeated elements at regular intervals in embryos. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh92002584 No owner-reviewed local answer yet.