ATI RN
Ricci Maternity and Pediatrics NCLEX Question Immunization Questions
Question 1 of 5
Comparing the arrangement of TCR genes and BCR genes, the chain is analogous to the heavy (H) chain and the chain is analogous to the light (L) chain.
Correct Answer: B
Rationale: In TCRs, the beta (β) chain is analogous to the heavy chain, and the alpha (α) chain is analogous to the light chain.
Question 2 of 5
CD4 and CD8 enhance the response of specific T cells, both by stabilizing the TCR-peptide-MHC complex and by bringing what type of protein kinase into the proximity of the cytoplasmic tails, thereby facilitating signal transduction and cell activation?
Correct Answer: D
Rationale: Tyrosine kinases (e.g., Lck) are brought into proximity by CD4 and CD8 for signal transduction.
Question 3 of 5
Which of the following is NOT a structural chain in class II MHC?
Correct Answer: C
Rationale: Class II MHC includes α1, α2, β1, and β2, but not α3.
Question 4 of 5
Dual recognition: self MHC + peptide antigen
Correct Answer: B
Rationale: TCRαβ recognizes self MHC plus peptide antigen.
Question 5 of 5
In the processing pathway for intracellular antigens, the proteasome will viral protein molecules until peptides of residues are formed; these can bind to class I MHC molecules.
Correct Answer: C
Rationale: The proteasome breaks down intracellular (e.g., viral) proteins into peptides of 8-11 residues, suitable for MHC Class I binding.