Virology MCQs (Quiz 1) Posted on June 20, 2026Author agropublishers 0 1. Viruses are classified as _______________ Acellular Prokaryotic Eukaryotic Multicellular 2. Virology is the branch of science that studies _____________ Viruses Algae Fungi Bacteria 3. The term “virus” originates from a Latin word vīrus meaning ________________ Disease Poison Infection Epidemic 4. Scientist _____________________ concluded that viruses multiply only within the living cells Lois Pasteur Frederick William Twort Robert Koch Martinus Beijerinck 5. Viruses are generally measured in ___________ Millimeters Centimeters Nanometers Micrometers 6. The first successful vaccine was developed against ____________ Polio HIV Smallpox Tuberculosis 7. _____________ are viruses that infect bacteria Bacteriophages Viroids Mycoviruses Retroviruses 8. Virology is a branch of _________________ Ecology Botany Zoology Microbiology 9. ______________________ was the first human virus identified Rabies virus Hepatitis B virus Yellow Fever Virus HIV 10. Viruses became visible after the invention of the _______________ Light microscope Electron microscope Compound microscope Fluorescence microscope Loading … Question 1 of 10