Immunology

Question 1

What are the lymphocyte categories?

Answer 1

B cells - bursa-equivalent cells
T cells - thymus-derived cells

Question 2

What is the structure of immunoglobulins?

Answer 2

2 identical light chains and 2 identical heavy chains
Between classes differ in size, charge, carbohydrate content, and amino acid sequence

Question 3

What determines the immunoglobin class?

Answer 3

Type of heavy chain

Question 4

What is the function of b-cells?

Answer 4

Present antigens to t-cells

Question 5

How many days after onset of symptoms is VZV IgG detectable?

Answer 5

4

Question 6

Chance of congenital CMV if maternal seroconversion occurs in pregnancy?

Answer 6

30%

Question 7

Which test is most useful for diagnosing acute CMV infection in mother?

Answer 7

CMV IgG avidity

Question 8

Which test is most useful for diagnosing acute CMV infection in mother?

Answer 8

CMV IgG acidity

Question 9

Cytokine that inhibits HIV replication?

Answer 9

Interferons

Question 10

APCs in cervix?

Answer 10

Langerhans cells