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18_pdfsam_apluspreptt1pkg - 10 T/F Question Bank Nature of...

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10. T/F Question Bank Nature of Viruses All viruses have an infectious phase. – T Some viruses can multiply in dead cells. – F (Viruses need LIVING cells) Viruses have no metabolic systems or intrinsic motility, and unable to grow or undergo binary fission. – T Every living cell has several viruses. – T Some viruses cause cancer. – T (integrate into & transform host chromosome) Antibiotics have no effects on virus. – T No viruses are visible by light microscope. – T No single virus can have both RNA and DNA. – T Viruses can attack all living organisms. – T DNA Viruses All DNA viruses replicate in nucleus. – T All DNA viruses code for DNA dependent DNA polymerase. – F (CaMV uses RT) All DNA viruses require cellular DNA dependent RNA polymerase, found in nucleus but not in cytoplasm, for replication. – T RNA Viruses All RNA viruses code for RNA polymerases. – T All RNA viruses replicate in cytoplasm. – F (Influenza is the exception) All negative-sense RNA viruses carry RNA dependent RNA polymerases within the viral
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