Discussion
Which of the following viruses has DNA as its genome ?
Answer: C
The virus with a DNA genome is Cauliflower mosaic virus.
Cauliflower mosaic virus, a caulimovirus, has a circular double-stranded DNA genome, which it replicates through an RNA intermediate by reverse transcription. Its strong 35S promoter is widely used in plant genetic engineering.
HIV is a retrovirus with an RNA genome. Tobacco mosaic virus and cucumber mosaic virus are plant viruses with single-stranded RNA genomes; most plant viruses are RNA viruses.
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