AIDS is caused by:
Correct answer: B. Virus
- A. Bacteria
- B. Virus
- C. Fungi
- D. Algae
Explanation
Option B is correct. Yes, AIDS is caused by a virus. The virus is called the human immunodeficiency virus (HIV). HIV is a retrovirus, which means that it carries its genetic material in the form of RNA. The RNA is reverse transcribed into DNA by the virus's reverse transcriptase enzyme. The DNA is then integrated into the DNA of the host cell, where it can be replicated and transcribed into new viral RNA. It is not caused by bacteria, fungi, or algae.
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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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