Microbiology Questions and Answers
Practice ModeShowing 10 of 25 questions
Q21
Which bacteria is responsible for typhoid fever?
Answer: Option B
Explanation: Salmonella typhi is the causative agent of typhoid.
Q22
Which staining technique is used to differentiate bacterial types?
Answer: Option A
Explanation: Gram staining differentiates Gram-positive and Gram-negative bacteria.
Q23
Which bacteria is used in the production of insulin?
Answer: Option B
Explanation: Recombinant E. coli is used in the production of human insulin.
Q24
Which bacteria is commonly used in sewage treatment?
Answer: Option B
Explanation: Pseudomonas species are used in biodegradation during sewage treatment.
Q25
Which scientist discovered penicillin?
Answer: Option B
Explanation: Alexander Fleming discovered penicillin in 1928.