The statement 'the information flow of such viruses is: DNA to RNA to protein' is FALSE (Option A). These viruses are composed of an RNA genome.
A retrovirus is a type of virus capable of inserting a copy of its RNA genome into the DNA of the host cell by an enzyme called transcriptase inverse.
Retroviruses are single-stranded RNA viruses that use a double-stranded DNA molecule as an intermediate for their replication.
For this purpose, a retrovirus uses the host molecular machinery when it invades a host cell.
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