An injection of “naked” DNA into muscle cells to induce an immune response against the proteins encoded by the DNA is an example of a subunit vaccine.

Monoclonal antibodies are used in diagnostic tests and disease treatments because they are highly specific and they can be produced in large quantities.

When an antibody binds to a toxin, the resulting action is referred to as _______________.

The antibodies found in mucus, saliva, and tears are __________.

When an antibody binds to a toxin, the resulting action is referred to as _______________.

The cells responsible for the production of circulating antibodies are Natural Killer cells. 

The antibodies that can cross the placenta are _______________.

The antibodies found in mucus, saliva, and tears are __________.

The cells responsible for the production of circulating antibodies are Natural Killer cells. 

The antibodies that can cross the placenta are _______________.