Retroviridae
The commonest opportunistic infection in AIDS patient in India is

cryptosporidiosis
toxoplasmosis
cryptococcosis
tuberculosis

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Retroviridae
A viral load test detects the

total amount of virus in the infected host
number of viruses being released by each infected cell
provirus of HIV in infected cells
amount of bacteriophage being produced by E. coli cells

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Retroviridae
HIV or Human Immunodeficiency Virus is considered unique because each virus contains:

sticky proteins that allow it to bind tightly to host cells
a genome made up of both DNA and RNA components
a viral enzyme known as reverse transcriptase
more than 100 copies of the viral genome

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