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B
ssRNA
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C
dsRNA
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D
dsDNA
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Solution
The correct option is B ssRNA The human immunodeficiency virus (HIV) is a lentivirus that causes acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening infections and cancers to thrive. HIV is composed of two copies of positive-sense single-stranded RNA enclosed by a conical capsid. The single-stranded RNA is tightly bound to nucleocapsid proteins, p7, and enzymes needed for the development of the virion such as reverse transcriptase, proteases, ribonuclease and integrase.