Which of the following is not a described type of virus?
Correct answer: D. Virus containing single strand RNA and single strand DNA
- A. Virus containing single strand DNA
- B. Virus containing double strand DNA
- C. Virus containing single strand RNA
- D. Virus containing single strand RNA and single strand DNA
Explanation
Option D is correct, as viruses can be classified into two groups based on their genetic material: DNA viruses and RNA viruses. DNA viruses have a double-stranded DNA genome, while RNA viruses have either a single-stranded RNA genome or a double-stranded RNA genome. There is no known virus that has both a single-stranded RNA genome and a single-stranded DNA genome.
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