ATI RN
Pediatric Immunization NCLEX Questions Quizlet Questions
Question 1 of 5
Which of the following is only contained in heavy chains and not in light chains?
Correct Answer: C
Rationale: The Diversity (D) segment is unique to heavy chains, contributing to antibody diversity, and is not present in light chains.
Question 2 of 5
Which of the following TCR genetic chains contains V and J segments, similar to genes for immunoglobulin kappa and lambda light chains?
Correct Answer: D
Rationale: Gamma (γ) and alpha (α) chains contain V and J segments, analogous to light chain genes.
Question 3 of 5
Which of the following molecules is necessary (not accessory) for antigen recognition and T cell activation?
Correct Answer: B
Rationale: CD3 is essential for TCR signaling and T cell activation, unlike the accessory roles of CD4 and CD8.
Question 4 of 5
MHC class I has three genes (HLA-A, HLA-B, & HLA-C). Which of the following is the correct order from most alleles (most polymorphic) to least alleles?
Correct Answer: C
Rationale: HLA-B is the most polymorphic, followed by HLA-A, then HLA-C.
Question 5 of 5
Ankylosing spondylitis
Correct Answer: A
Rationale: Ankylosing spondylitis is strongly associated with HLA-B27.