Microbiology True about diptheria is – A Loffler's serum is highly selective medium for C. diptheria B Elek's Gel is a precipitation test C Metachromatic granules is produced on stain only by one strain of C. diphtheria D Gm -ve bacilli, non motile, non capsulated 💡 Explanation True about diptheria is - ✓ Correct Answer: B. Elek's Gel is a precipitation test