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Which of the following statements about viroids is accurate?

1. Viroids represent the smallest pathogens known to science.
2. Viroids consist of uncoated RNA molecules.
3. Viroids are capable of self-replication within plant hosts.
4. All of the statements above are correct.

Correct answer: All of the statements above are correct.

Solution

All the given statements about viroids are correct: they are the smallest known pathogens, consist of naked RNA molecules, and can autonomously replicate in host plants. Thus, the correct answer is 'All of the above.'

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