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