Viruses have?
Correct answer: A. DNA is enclosed in a protein coat
- A. DNA is enclosed in a protein coat
- B. Prokaryotic nucleus
- C. Single chromosome
- D. Both DNA and RNA
Explanation
The most accurate statement about viruses is that they contain genetic material (either DNA or RNA) enclosed in a protein coat, and they lack a prokaryotic or eukaryotic nucleus. Viruses are nucleoprotein entities that can utilize the synthetic machinery of a living cell of the host organism for their multiplication, which does not involve growth and division. They have either RNA or DNA as genetic material and a protein coat.
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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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