Microbiology Daisy head appearance of colonies of Corynebacterium diphtheria on blood tellurite agar is shown by A Gravis biotype B Intermedius biotype C Mitis biotype D None of the above 💡 Explanation Daisy head appearance of colonies of Corynebacterium diphtheria on blood tellurite agar is shown by ✓ Correct Answer: A. Gravis biotype