Principles of General Microbiology
- Previous year questions on Principles of General Microbiology for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Microbiology section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 232 live questions in Principles of General Microbiology.
- 5 of 232 questions carry a verified exam year: 2019.
- Microbiology is worth about 20 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 6 Sept 2026.
Q1.Fever, leukopenia, DIC, and hypotension caused by members of the Enterobacteriaceae family are most strongly associated with which of the following structures?
- AH antigens
- BK antigens
- CLipid A✓ Correct answer
- DPolysaccharides
Q2.Gram-negative bacteria doesn’t take gram stain because it is made of:
- APolysaccharide
- BLipopolysaccharide✓ Correct answer
- CTechoic acid
- DNone of the above
Q3.which of the following help in bacterial adhesion
- Acytoplasmic membrane
- BMesosomes
- CFimbria✓ Correct answer
- DLPS
Q4.Loffler's medium is
- AIndicator medium
- BSelective medium
- CEnrichment medium
- DEnriched medium✓ Correct answer
Q5.Transfer of a portion of DNA from one bacterium to another by the bacteriophage is known as
- ATransformation
- BTransduction✓ Correct answer
- CTranscription
- DLysogenic conversion
Q6.DNA transfer in bacteria phage is:
- AConjugation
- BTransduction✓ Correct answer
- CTransformation
- DTranslation
Q7.The polysaccharide capsule of following bacteria has in role in their infectivity except
- AHaemophilus influenza
- BNeisseria meningitides
- CStreptococcus pneumoniae
- DBordetella pertussis✓ Correct answer
Q8.Which of the following is not true about the cell wall of Gram positive bacteria?
- AThicker
- BSeveral varieties of amino acids✓ Correct answer
- CAbsence of lipids
- DAbsence of sulphur containing amino acids
Q9.The resolution provided by the light microscope is
- A200 nm✓ Correct answer
- B20 nm
- C2.0 nm
- D0.2 nm
Q10.Mode of transmission to bacteria through bacteriophage is by?
- ATransformation
- BTransduction✓ Correct answer
- CTranslation
- DConjugation
Answer key
Q1: C. Lipid A; Q2: B. Lipopolysaccharide; Q3: C. Fimbria; Q4: D. Enriched medium; Q5: B. Transduction; Q6: B. Transduction; Q7: D. Bordetella pertussis; Q8: B. Several varieties of amino acids; Q9: A. 200 nm; Q10: B. Transduction.
Other topics in Microbiology
- Cells and Organs of the Immune System
- Immune System: Organisation, Function and Response
- Hypersensitivity
- Disorders of Immunity
- Streptococci and Enterococci
- Staphylococci
- Corynebacterium, Listeria and Actinomyces
- Clostridium and Bacillus
- Non-Sporing Anaerobes
- Mycobacterium Tuberculosis
- Mycobacteria Other Than Tuberculosis
- Escherichia, Proteus and Klebsiella
- Shigella and Salmonella
- Vibrio and Campylobacterales
- Pseudomonas and Burkholderiales
- Haemophilus
- Yersinia, Brucella, Bartonella and Legionella
- Gram-Negative Cocci
- Rickettsia, Chlamydia and Mycoplasma
- Spirochetes
- Virus Structure and General Properties
- DNA Viruses
- Hepatitis
- HIV
- Myxoviruses and Rhabdoviruses
- Arboviruses and Picornaviruses
- Rubella, Coronaviruses, Prions, Rotavirus, Filovirus, Zika Virus and Nipah Virus
- Superficial and Systemic Fungal Infections
- Opportunistic Fungal Infections
- Principles of Parasitology
- Protozoa: Amoebae, Ciliates and Flagellates
- Protozoa: Sporozoa
- Helminths: Cestodes and Trematodes
- Helminths: Nematodes
- Applied Clinical Microbiology