This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Thick pus of streptococci is conveed thin by enzyme - 
Select and explain. 
A. DNAase, B. Streptokinase, C. RNAase, D. C5a peptidase
A: DNAase
Answer: A: DNAase 
Explanation: Ans. is 'a' i.e.,DNAase Deoxyribonuclease (DNAase) of streptococcus is also called as streptodornase.They cause depolymerization of DNA. They liquefy highly viscous DNA that accumulates in thick pus.This is responsible for the thin serous character of streptococcal exudates.