Viroids are short, circular, single stranded RNAs that can infect some plants. They are different from viruses because they lack a protein capsule and cannot produce proteins on their own. Viroids can cause various diseases in plants, including crop damage and reduced crop yields.

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Viroids Are

Question 60

Multiple Choice

Viroids are:

A) proteins that may infect man and other animals causing spongiform encephalopathy.
B) a class of so-called slow viruses.
C) a new class of small single stranded DNA viruses that infect some animals.
D) short infectious single stranded RNAs that can infect some plants.

Correct Answer: