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