By choosing a tandem model, you will be less likely to outgrow your trailer; the extra upfront expense may be worth it in the long run. While towing level is not a factor for single axle models, level towing is a must for a tandem axle trailer. If the load is not level it can cause extra wear and tear on one set of axles, and reduce the life of your tires. The initial investment for a tandem trailer is higher than the cost for a single axle model.
The five primary classes of immunoglobulins are IgG, IgM, IgA, IgD and IgE. These are distinguished by the type of heavy chain found in the molecule.
Review of Types of Antibodies. Immunoglobulins are the antibodies formed as a result of immune stimulus (exposure to foreign antigen). In Blood Bank we are referring to those antibodies that will attach to blood cells. We are most concerned about those antibodies that are known to cause transfusion reactions and hemolytic disease of the newborn.