<prompt> Regarding HIV which of the following is not true?It is a DNA retrovirusContains Reverse TranscriptaseMay infect host CD4 cells other than T lymphocytesCauses a reduction in host CD4 cells at late stage of disease  <response>: Ans. is a i.e., It is a DNA retrovirusRef: Ananthanarayan, 9the, p. 571, 574 and 8the, p. 570 HIV is a RNA virus not DNA. It contains reverse transcriptase enzyme, which is a characteristics feature of retroviruses. The receptor for the virus is the CD4 antigen on surface. The cells affected are:- CD4 T Cells major target.- B lymphocytes.- Monocytes and macrophages.- Langerhans cells in dermis.- Glial cells and microglia in the CNS.- Follicular dendritic cells from tonsils can be infected by HIV without the involvement of CD4. CD4 T cells are reduced and T4:T8 Cell ratio is reversed. 