ATI RN
Pediatric Immunization NCLEX Questions Ricci Questions
Question 1 of 5
Each antibody molecule contains heavy chains and light chains.
Correct Answer: D
Rationale: Each antibody has two heavy and two light chains, forming a Y-shaped structure.
Question 2 of 5
What color light is emitted when antigens are exposed to UV light after being treated with fluorescein isothiocyte (FITC), such as in the test for Treponema pallidum (syphilis) or to dye the Chicago river for a particular holiday (fluorescein)?
Correct Answer: D
Rationale: Fluorescein (FITC) emits green light when excited by UV light, commonly used in fluorescence microscopy and assays.
Question 3 of 5
Which of the following is NOT true regarding the mechanisms of generating antibody diversity?
Correct Answer: D
Rationale: Antibody diversity arises from multiple combinations of light and heavy chains, not a single combination.
Question 4 of 5
In comparison toαβ T cells, δγ T cells and are hypothesized to be a line of immune defense.
Correct Answer: B
Rationale: δγ T cells do not typically use MHC for antigen recognition and are considered a primary line of defense.
Question 5 of 5
Allelic exclusion is a process by which the protein from only one allele is expressed while other allele(s) are silenced. Allelic exclusion occurs (generally) in which of the following?
Correct Answer: A
Rationale: Allelic exclusion occurs in B cells and TCR beta chains, but not typically in alpha chains.