A) ss DNA virus
B) ds DNA virus
C) ss RNA virus
D) ds RNA virus
Correct Answer: C
Solution :
Genetic information is carried in viruses by either RNA or DNA. the genome of a virus can be either single stranded (ss RNA), double stranded RNA (c/sRNA), single stranded DNA E (ss DNA), double stranded DNA (ds DNA) or a mix of ss DNA and ds DNA. Retro viruses are a group of human viruses that include HIV. They are enclosed in a lipid membrane and their genetic material is the two single stranded RNA. On infection, this RNA is copied to DNA and the DNA is incorporated into the hosts chromosome.
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