ATI RN
Questions on Immune System Questions
Question 1 of 5
eyeball too short cause
Correct Answer: A
Rationale: An eyeball that is too short causes farsightedness (hyperopia) because light focuses behind the retina, making near objects blurry.
Question 2 of 5
Monoclonal antibodies are produced
Correct Answer: A
Rationale: Monoclonal antibodies come from hybridomas (B cell-tumor cell fusions), producing identical antibodies, not from pregnancy, infection, or B-T cell fusion.
Question 3 of 5
Complete the following sentence. The cleavage of C3 and C5 results in the production of C3a and C5a fragments which are...
Correct Answer: D
Rationale: C3a and C5a are anaphylatoxins that trigger inflammation by recruiting immune cells, not forming MAC (C5b-C9) or opsonizing (C3b role).
Question 4 of 5
Complete the following sentence. A genetic feature that contributes to the diversity of MHC molecules involves....
Correct Answer: A
Rationale: MHC diversity arises from codominant expression of alleles from both parental haplotypes, enhancing antigen presentation variety.
Question 5 of 5
T cells that express γ δ chains:
Correct Answer: A
Rationale: γδ T cells have innate-like roles, often lack CD4/CD8, and recognize non-MHC antigens.