Viruses are the particles of _.
Correct answer: C. Nucleic acid & Protein
- A. Nucleic acid only
- B. Proteins only
- C. Nucleic acid & Protein
- D. None of these
Explanation
Viruses are acellular entities composed of genetic material, which can be either DNA or RNA but never both. This genetic material is enclosed within a protein coat called a capsid, which protects the nucleic acid and aids in infection. Together, the nucleic acid and the capsid form the nucleocapsid. In many viruses, an additional outer envelope derived from the host cell membrane surrounds the capsid; this envelope contains lipids as well as viral proteins (such as glycoprotein spikes) that help the virus attach to and enter host cells.
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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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