The Commission publishes this paper without an answer key, so no answers are shown.
1. What are biodiversity hot spots? (2)
2. What are prions ? (2)
3. What is erythroblastosis fetalis ? (2)
4. What are coacervates ? (2)
5. Define a living fossil. (2)
6. Mention the contributions of H. G. Khorana. (4)
7. What are primary chordate characters? (4)
8. Mention the factors affecting enzyme action. (4)
9. What is hybridoma technology ? (4)
10. Describe the structure of T₄ bacteriophage. (4)
11. Give an account on different types of antigens. (5)
12. Write the consequences of global warming. (5)
13. Why archaeopteryx is a connecting link? (5)
14. Comment on neurotransmitters. (5)
15. Compare spermatogenesis and oogenesis. (5)
16. Comment on Ras Mol. (5)
17. Explain polytene chromosome. (5)
18. Comment on the importance of coral reefs to marine ecosystem. (7)
19. Explain the principle of ELISA and its various forms. (7)
20. Explain cell cycle. (7)
21. Differentiate between striated and cardiac muscle. (7)
22. Enumerate the characteristics of genetic code. (7)
23. Comment on replication of viruses. (10)
24. Explain major respiratory disturbances and diseases. (10)
25. Comment on renewable resources of energy. (10)
26. Discuss the barriers controlling animal distribution. (10)
27. Comment on biosphere reserves and how they differ from national parks and sanctuaries ? (10)
28. Explain the life cycle of plasmodium. (10)
29. Differentiate between prokaryotic and eukaryotic ribosomes. (10)
30. Explain different types of asexual reproduction in invertebrates. (10)
31. Explain PCR technique and its application. (10)
32. Comment on plastic waste management. (10)
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