Microbiology MCQs (Quiz 20) Posted on June 11, 2026Author agropublishers 0 1. Influenza virus belongs to the family ___________ Hepadnaviridae Retroviridae Orthomyxoviridae Flaviviridae 2. The causative agent of AIDS (HIV) was discovered by ________________________ Robert Koch Louis Pasteur Alexander Fleming Luc Montagnier 3. Influenza virus contains ______________ Single-stranded RNA Single-stranded DNA Double-stranded RNA Double-stranded DNA 4. Hepatitis C virus is transmitted primarily through _____________________ Fecal-oral route Exposure to infected blood Airborne spread Insect bites 5. The genetic material of a bacterial cell is located in the _______________ Nucleoid Nucleus Golgi apparatus Mitochondrion 6. The primary target organ of Hepatitis C Virus (HCV) is ________________ Brain Pancreas Liver Spleen 7. Small circular DNA molecules in bacteria are called __________________ Transposons Plasmids Operons Chromosomes 8. HIV belongs to the family of ________________ Retroviruses Adenoviruses Orthomyxoviruses Herpesviruses 9. HIV is transmitted through _______________ Mosquito bites Contaminated water Airborne droplets Blood and body fluids 10. _______________ virus is commonly causes seasonal flu HBV Influenza virus HIV HCV Loading … Question 1 of 10
