NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
HIV preferentially infects
A
the adrenal glands
B
pancreatic cells
C
gametes
D
white blood cells
Explanation: 

Detailed explanation-1: -HIV preferentially infects HIV-specific CD4+ T cells.

Detailed explanation-2: -HIV finds the white blood cells, called CD4 cells. HIV gets inside the CD4 cell and makes copies of itself. Then, HIV kills the CD4 cell and the new HIV copies find other CD4 cells to get inside and start the cycle again. HIV kills immune system cells that help the body fight infections and diseases.

Detailed explanation-3: -CD4+ T cells Given that CD4+ memory T cells are the primary target of HIV-1 in the blood (Brenchley et al.

Detailed explanation-4: -HIV infection causes an acquired immunodeficiency, principally because of depletion of CD4 lymphocytes. The mechanism by which the virus depletes these cells, however, is not clearly understood.

Detailed explanation-5: -HIV binds to the CD4 molecule on the surface of helper T-cells and replicates within them. This results in destruction of CD4+ T-cells and leads to a steady decline in this population of T-cells.

There is 1 question to complete.