Exam 17: Genes and the Immune System

Suppose that an infectious agent, such as a virus or bacteria, had surface antigens identical to those displayed on the surface of human cells. Would the immune system be able to detect and destroy these agents? What prevents this from happening?

Lymphocytes are involved in the immune response.

Of the four types of T cells, only the ____________________ cells destroy infected body cells.

How many HLA haplotypes does each human have?

____________________ T cells secrete interleukins that activate other cells in both the cell-mediated and antibody-mediated immune responses.

The chemical defense system that complements the immune system and supplements the inflammatory response is the ____________________ system.

Which of the following is a pair of agents that both puncture the membranes of foreign bacteria?

The enzyme responsible for producing DNA copies of HIV RNA molecules is ________________.

The use of organs harvested from animals for human transplants is called ________________.

T cells become mature, programmed cells in the _______________.

Which of the following is most closely associated with a MAC attack?

Circulating antibodies are produced by

The life threatening body-wide response that can occur when allergens enter the circulatory system and cause a severe drop in blood pressure is called ____________________.

John and all his brothers have no antibodies caused by non-functional B cells, thus they are highly susceptible to bacterial infections. John and his brothers most likely have a condition called __________________.

Describe an antibody.

Explain what B cells and T cells do in the human immune system.

A protein that interacts with an antibody is called a(an) _______________.

Incompatibility in the Rh blood system can result in hemolytic disease of the newborn. The following combination poses the greatest risk:

According to the current theory of antibody formation

In both experimental cross-species transplants and human-human transplants, T-cell mediated rejection has been avoided, without drugs, by also transplanting ____________________ from donor to recipient.