The principle mechanism of the A-B exotoxins is that the A component binds to the host cell receptors to allow the B component to enter the cell.

A persistent infection is one in which ________.

Most members of the domain Bacteria have been discovered.

The antibiotic tetracycline binds to the 30S subunit of the ribosome. The outcome of this mechanism is to:

The ability of some microbes, such as Trypanosoma or Giardia to alter their surface molecules and evade destruction by the host's antibodies is called ________.

Cytopathic effects are changes observed in host cells due to fungal infections.

Most drugs that interfere with viral multiplication also interfere with host cell function.

Genetic recombination will always alter the genotype of a cell.

Siderophores are bacterial proteins that compete with the host's ________.

One of the similarities between the semi-synthetic penicillins and natural penicillins is: