Biological Classification – Viruses, Viroids, Prions, Lichens

Grade 11 Biology — Biological Classification – Viruses, Viroids, Prions, Lichens: 25 practice questions with instant scoring and explanations.

1. Viruses are:
2. The genetic material of viruses can be:
3. The protein coat surrounding viral genetic material is called:
4. Viruses that have a lipid layer surrounding the capsid are:
5. Viruses that infect bacteria are called:
6. The lytic cycle in bacteriophages results in:
7. The lysogenic cycle involves:
8. Retroviruses contain the enzyme:
9. Viroids are:
10. Prions are infectious agents composed of:
11. Creutzfeldt-Jakob disease is caused by:
12. Scrapie in sheep is caused by:
13. The mechanism by which prions cause disease involves:
14. Lichens are a symbiosis between:
15. The photosynthetic partner in a lichen is the:
16. The fungal component of a lichen provides:
17. Lichens reproduce through:
18. TMV (Tobacco Mosaic Virus) is a:
19. Viral multiplication within a host cell requires:
20. The enzyme that replicates viral RNA is:
21. Which of the following is NOT a viral disease?
22. Viruses reproduce through:
23. The size of viruses typically ranges from:
24. Host-specific viruses infect:
25. Kuru disease is caused by: