Multiple choice Which of the following pairs is incorrect? Hyaluronidase - C. perfringens Streptokinase - Streptococci DNAase - Ureoplasma Coagulase - S. aureus Reveal answer Fill a bubble to check yourself C Correct answer Explanation Ureoplasma does not secrete DNAase. Hydrogen peroxide and ammonia are excreted as virulence factor.