During which stages of infectious disease is a patient contagious?

Which of the following structures of a eukaryotic cell is not likely derived from endosymbiotic bacteria?

The purpose(s) of an electron transport chain is/are to

The job of TH cells is to

Which of the following vaccine types is commonly given with an adjuvant? a.  a toxoid vaccine b.  an attenuated (“live”) vaccine c.  an inactivated (“killed”) vaccine 

Following hurricanes, people can be at risk of contracting                , due to contact with water that may be contaminated by rat urine.

Serratia marcescens cells produce a red pigment at room temperature.  The red color of the colonies is an example of which of the following?

In addition to playing a role in cell-mediated immunity, MHC molecules play roles in

Various strains of  this virus cause a disease known as the “common cold”.

Which of the following antibody types can trigger allergic reactions by causing mast cells to degranulate?