Biology Biotechnology PMDC Conceptual Practice
PMDC Verified Question 25 of 65
Golden rice is a transgenic crop engineered to synthesize:
A
Vitamin C
B
Beta-carotene
C
Vitamin D
D
Lysine
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Beta-carotene
Concept:

Biofortification of essential human nutrients in staple crops.

Solution:

Golden Rice is genetically engineered with genes from daffodil and Erwinia to produce \( \beta \)-carotene (provitamin A) in the endosperm, combating Vitamin A deficiency.

Why other options are incorrect:

  • Vitamin C: Ascorbic acid is abundant in citrus fruits; not the targeted pathway engineered in Golden Rice.


  • Vitamin D: Synthesized photochemically in skin exposure to UV radiation or obtained from animal fats.


  • Lysine: An essential amino acid engineered into specific high-lysine maize lines, not Golden Rice.

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