Set 5: Command of Evidence (Advanced)

Explanation

Answer: B

PASSAGE

Prions are misfolded proteins that cause other proteins to misfold. Unlike viruses or bacteria, they contain no genetic material. They cause diseases like mad cow (BSE) and Creutzfeldt-Jakob disease.

What makes prions unique among pathogens?

A. They are viruses.

B. They are infectious without DNA or RNA.✓ Correct

C. They respond to antibiotics.

D. They are harmless proteins.

Detailed Explanation

This question requires you to identify evidence that supports a claim. 'Contain no genetic material.' The best evidence directly and explicitly supports the stated claim without requiring assumptions. Match specific textual details or data points to the claim being made. The correct answer provides clear, direct support. Strong evidence directly addresses the claim without requiring additional interpretation. When evaluating options, look for quotes or data that explicitly support the statement. Weak evidence may be tangentially related but doesn't provide direct proof.

Key Evidence:

• "Prions are misfolded proteins that cause other proteins to misfold"

• "Unlike viruses or bacteria, they contain no genetic material"

Why others are wrong: A (This option is incorrect.), C (This option is incorrect.), D (This option is incorrect.).

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