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