1. All lymphoid cells have antigen-specific receptors (BCR, TCR) on their cell s

ID: 162994 • Letter: 1

Question

1. All lymphoid cells have antigen-specific receptors (BCR, TCR) on their cell surface. a. True b. False

2. At what stage of development does a human produce its own IgG? a. At birth b. puberty c. 40 – 50 yr old d. just post birth

3. A rabbit immunized with human IgG3 will produce an antibody that reacts with all subclasses of IgG in humans. a. True b. False

4. All immunoglobulin molecules on the surface of a given B cell have the same isotype. a. True b. False

5. All myeloma protein molecules derived from a single clone will have the same idiotype and allotype. a. True b. False

1. True.

These receptors are involved in antigen recognition.

2.option D. Just after birth

IgG is typically produced 3 months after birth.

3. False

4. True

5.true.

In multiple myeloma, excessive light chains are produced by the same clone of b cells. Hence all proteins will have same idiotype and allotype. I

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