Viruses quiz
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Which drugs attack the flu itself?
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More questions about Viruses
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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What childhood disease comes back later as shingles?
Answer: Chickenpox
Why: The virus sleeps in a nerve for years, so when it wakes, the rash follows that nerve as a stripe on one side of the body.
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What is the protein shell around a virus called?
Answer: Capsid
Why: Many capsids are 20 sided and built from copies of a single protein, so a tiny genome codes the whole shell.
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How much of the ocean's microbe mass do viruses kill daily?
Answer: About 20%
Why: Burst cells spill their carbon as dissolved matter that other microbes eat again, a loop called the viral shunt.
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Where does a rhinovirus multiply best?
Answer: The nose
Why: Rhino is Greek for nose, and the virus copies better at the 33°C of the nostrils than at 37°C deeper in.
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How much of human DNA comes from ancient viruses?
Answer: About 8%
Why: Those stretches are leftovers of retroviruses that infected our ancestors' egg and sperm cells millions of years ago.
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How do bacteria store a memory of viruses they beat?
Answer: CRISPR
Why: Stored snippets of past invaders guide Cas enzymes to cut matching viral DNA, the targeting later turned into gene editing.
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