Viruses are classified into many groups based on:
Correct answer: D. All of these
- A. Nucleic acid
- B. Capsid symmetry
- C. Host cell infectivity
- D. All of these
Explanation
Viruses are extremely diverse and do not fit into the typical classification systems used for cellular organisms. To properly study and identify them, scientists classify viruses based on several important characteristics:Nucleic acid type (DNA or RNA, single-stranded or double-stranded) helps determine their replication strategies and genetic properties.Capsid symmetry (helical, icosahedral, or complex) gives insight into their structure and stability.Host cell infectivity distinguishes viruses based on the organisms they infect, such as bacteria (bacteriophages), plants (plant viruses), or animals/humans (animal 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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