Microbiology True about corynebacterium diphtheria is all except A Diptheriae invasion is not seen B Eleks test is done for toxigenicity C Metachromatic granules are seen D Toxigenicity is mediated by chromosomal change 💡 Explanation True about corynebacterium diphtheria is all except ✓ Correct Answer: D. Toxigenicity is mediated by chromosomal change