Question

Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is (a)...

Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is

(a) double stranded RNA

(b) double stranded DNA

(c) single stranded DNA

(d) single stranded RNA.

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Answer #1

Human immuno deficiency virus (HIV) belongs to lentivirus genus and retroviridae family. Human immuno deficiency virus has a protein coat and a genetic material which is single stranded RNA. Human immuno deficiency virus has two copies of ssRNA which is identical and these ssRNA functions as a mRNA. HIV use these ssRNA functions as a mRNA for the formation of DNA by using reverse transcriptase activity of reverse transcriptase enzyme. This virus attacks on the immune system which is the defence system of the body and degrade the WBCs which is circulate in the blood stream and fight with antigens. This virus is generally found in semen, blood, breast milk, veginal and anal fluid. Can not be transmitted through the sweet, saliva and urine.

Answer D is right.

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