Biology Biotechnology PMDC Conceptual Practice
PMDC Verified Question 22 of 65
In particle gun transformation, microscopic metal particles are coated with:
A
RNA
B
Antibodies
C
DNA
D
Enzymes
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: DNA
Concept:

Biolistic bombardment methods for direct gene transfer.

Solution:

In particle gun bombardment (biolistics), microscopic heavy metal microprojectiles (gold or tungsten) are coated with recombinant DNA and accelerated at high velocity into target plant cells.

Why other options are incorrect:

  • RNA: Transiently expressed, but stable genomic transformation requires target DNA integration into the host genome.


  • Antibodies: Proteins used for diagnostic or therapeutic targeting, not genetic transformation.


  • Enzymes: Biocatalysts that do not integrate into host cell chromosomes to alter heritable traits.

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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