QUESTION 21 Which of the following statements about viruses is true? DNA viruses carry their own DNA polymerase. All viruses have envelopes. All viruses use their own metabolic enzymes. All viruses have a nucleic acid.
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DNA viruses carry their own DNA polymerase: Some DNA viruses do carry their own DNA polymerase, but not all. 2. All viruses have envelopes: Not all viruses have envelopes. Some are naked viruses. 3. All viruses use their own metabolic enzymes: Viruses are obligate Show more…
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Explain the importance of viral surface proteins, or spikes. Give two reasons why the following statement is false: “The genome of viruses is a double-stranded molecule of DNA.” Although viruses depend fully on the host, viruses contain a few enzymes. What are the three main viral enzymes? What is the purpose of each? List some of the basis by which viruses are classified and named. Although viruses are not typically assigned species name, viruses are classified into orders, families and genera (plural of genus). If given a name, how can you determine if it is from the order, family or genus of that virus? How is the order, family and genus of the Human herpesvirus 2 (HHV-2) written?
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Which is true of DNA viruses? a. They use the host cell's machinery to produce new copies of their genome. b. They all have envelopes. c. They are the only kind of viruses that can cause cancer. d. They are not important plant pathogens.
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