Biology Immunity PMDC Conceptual Practice
PMDC Verified Question 12 of 99
T-lymphocytes are designated with the prefix 'T' due to their essential developmental stage in the:
A
Thyroid gland
B
Thymus gland
C
Testes
D
Bursa of Fabricius
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Thymus gland
Concept: Lymphoid organ maturation.

Solution: T-lymphocytes originate in the bone marrow but migrate to the thymus gland, where they undergo negative and positive selection to acquire functional, antigen-specific surface receptors.

Why other options are incorrect:
  • Option A: The thyroid gland regulates metabolic rate via thyroid hormones.

  • Option C: The testes are reproductive gonads.

  • Option D: The Bursa of Fabricius is the avian gut-associated organ that gives B-lymphocytes their name.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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