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Q26. Which of these animals use heterophils instead of neutrophils for innate immunity?

Q36. Natural killer cells are a type of innate lymphocyte.  The function of Natural Killer cells is most like that of which adaptive cell? 

Q60. The first FDA-approved humanized monoclonal antibody, adalimumab (Humira), resulted in a ∼ 12% incidence of a therapeutic problem in a small percentage of patients with rheumatoid arthritis. The problem was that they developed anti-therapeutic antibodies (ATA). This problem was subsequently reduced to ∼2–3% for patients receiving methotrexate which is a non-steroid anti-inflammatory and a mild immunosuppressant. What type of difference most likely led to the ATA response? 

Q34. There are two granulocytes in this photomicrograph, and one of the granulocytes is immature. Both granulocytes have very large granules, indicating an acute infection in an animal. Which sick animal is this blood most likely from? 

Q67. (BONUS QUESTION 02) A 3-year-old boy is brought to the pediatrician due to recurrent respiratory infections and chronic diarrhea. His parents report he has had multiple episodes of pneumonia and otitis media since infancy. Physical exam reveals enlarged tonsils and cervical lymphadenopathy. Labs show: IgM: 850 mg/dL (rr: 40-230 mg/dL), IgG:

Q61. A researcher is studying antibody diversity developing in B cells. They observe that during V(D)J recombination, the enzyme terminal deoxynucleotidyl transferase (TdT) adds non-templated nucleotides at the junctions between gene segments. In which region of the antibody heavy chain is this junctional diversity most likely to directly affect the amino acid sequence?

Which of the following describe the scenario when a trait only manifests  if an individual has mutations in two different, unlinked genes: 

Which of the following  is part of a ‘precision medicine’ approach to cancer?

The nurse is on a medical mission and inspects this patient’s foot.  Which medical condition will the nurses suspect has caused this problem?

Match the following drugs to the reason they are prescribed.  THIS QUESTION IS WORTH 4 POINTS.