Biosynthesis of penicillin in the presence of C14.
D002244:Carbon; D002250:Carbon Radioisotopes; D008658:Inactivation, Metabolic; D010406:Penicillins / Q000378:metabolism*
D002250:Carbon Radioisotopes; D010406:Penicillins; D002244:Carbon
CARBON/radioactive; PENICILLIN/metabolism