Microbiology MCQs
Microbiology MCQs challenge students to identify pathogens, understand microbial physiology, and master infection control protocols. These questions span bacteriology, virology, mycology, parasitology, and immunology. Suitable for exams like MDCAT, FCPS, NTS, and USMLE, these quizzes improve both academic knowledge and clinical readiness.
Q: Prions are infectious agents composed only of
A) DNA
B) Protein
C) RNA
D) Lipid
Q: The primary vector for Dengue fever is
A) Tsetse fly
B) Culex mosquito
C) Aedes aegypti
D) Sandfly
Q: Bacterial conjugation involves
A) Spore formation
B) Binary fission
C) Transformation
D) Plasmid transfer
Q: The causative agent of syphilis is
A) Treponema pallidum
B) Neisseria gonorrhoeae
C) Chlamydia trachomatis
D) Haemophilus ducreyi
Q: The Gram stain was developed by
A) Hans Christian Gram
B) Louis Pasteur
C) Robert Koch
D) Paul Ehrlich
Q: Hepatitis B is primarily transmitted via
A) Blood and body fluids
B) Fecal-oral route
C) Airborne droplets
D) Contaminated food
Q: Flagella arrangement around the bacterial cell body is described as
A) Diplotrichous
B) Helicoidal
C) Biflagellar
D) Monotrichous
Q: Tuberculosis affects primarily the
A) Skin
B) Liver
C) Intestine
D) Lungs
Q: A facultative anaerobe grows
A) With or without oxygen
B) Only with oxygen
C) Only without oxygen
D) Only in darkness
Q: An enzyme used in PCR derived from Thermus aquaticus is
A) Amylase
B) Taq polymerase
C) Reverse transcriptase
D) DNA polymerase