Biology Biotechnology PMDC Conceptual Practice
PMDC Verified Question 33 of 65
Cystic fibrosis gene therapy utilizes liposomes coated with normal genes sprayed into:
A
Bloodstream
B
Nostrils
C
Stomach
D
Muscle tissue
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Nostrils
Concept:

In-vivo aerosolized delivery of CFTR genes.

Solution:

Cystic fibrosis causes thick mucus accumulation in the respiratory tract. Treatment uses gene-loaded liposome aerosol sprays administered directly through the nostrils or respiratory airways.

Why other options are incorrect:

  • Bloodstream: Systemic vascular delivery does not concentrate liposomes effectively on respiratory epithelial surfaces.


  • Stomach: Gastric acids and digestive enzymes degrade lipid-DNA complexes.


  • Muscle tissue: Intramuscular delivery targets localized protein expression, not respiratory mucosal epithelia.

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.

Previous Question All Biotechnology MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App