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