title: On the sensitivity of frozen micro-organisms to ultraviolet radiation.
mesh_terms: D001419:Bacteria / Q000378:metabolism / Q000528:radiation effects*; D005615:Freezing; D066298:In Vitro Techniques; D009154:Mutation / Q000528:radiation effects; D011743:Pyrimidines / Q000378:metabolism; D014466:Ultraviolet Rays / Q000009:adverse effects*
chemical_list: D011743:Pyrimidines