Practice Questions

Blood contains sufficient viral particles for transmission.

HIV can spread through infected blood.

Loss of CD4 cells weakens immunity.

HIV specifically infects and destroys helper T cells.

HIV causes AIDS by attacking the immune system.

Phages mediate transduction, transferring genes between bacteria.

Plant cell walls hinder entry, making wounds important portals.

TMV capsid proteins are arranged helically around RNA.

Latency involves persistence of viral genome with minimal viral production.

Rabies virus shows strong neurotropism and damages nervous tissue.