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Identify the correct pair of combination...

Identify the correct pair of combination
I. Viroid -Bovine spongiform encephalitis , II. Prion-Creutzfeldf-Jakob disease
III. Measles Virus -Glycoprotein projecions
IV. Rabies Virus-Polyhedral symmetry

A

III, IV

B

I, III

C

I,II

D

II, III

Text Solution

AI Generated Solution

The correct Answer is:
To identify the correct pair of combinations from the given options, we will evaluate each pair one by one. ### Step-by-Step Solution: 1. **Evaluate Pair I: Viroid - Bovine spongiform encephalitis** - Viroids are small, circular RNA molecules that cause diseases in plants. They do not cause diseases in animals or humans. - Bovine spongiform encephalitis (BSE) is a neurological disorder in cattle caused by prions, not viroids. - **Conclusion**: This pair is **incorrect**. 2. **Evaluate Pair II: Prion - Creutzfeldt-Jakob disease** - Prions are misfolded proteins that can cause neurodegenerative diseases. - Creutzfeldt-Jakob disease (CJD) is indeed a human form of a prion disease, similar to BSE. - **Conclusion**: This pair is **correct**. 3. **Evaluate Pair III: Measles Virus - Glycoprotein projections** - The measles virus is a viral infection that has glycoprotein projections on its surface, specifically hemagglutinin and fusion proteins, which are essential for its infectivity. - **Conclusion**: This pair is **correct**. 4. **Evaluate Pair IV: Rabies Virus - Polyhedral symmetry** - The rabies virus has a cylindrical or bullet-shaped morphology, not polyhedral symmetry. - **Conclusion**: This pair is **incorrect**. ### Final Conclusion: The correct pairs are: - Pair II (Prion - Creutzfeldt-Jakob disease) - Pair III (Measles Virus - Glycoprotein projections) Thus, the correct answer is **II and III**.
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