Which of the following is not true about viruses?
Correct answer: B. Can replicate on their own
- A. Contain DNA
- B. Can replicate on their own
- C. Can infect bacteria
- D. They have a sub-cellular structure
Explanation
Viruses cannot replicate on their own. They lack the cellular machinery needed for reproduction and must infect a host cell to replicate. Once inside a host cell, a virus hijacks the cell's machinery to produce viral components, which are then assembled into new virus particles. This dependence on a host cell is a defining characteristic of viruses.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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