Selected MCQ

Current Question
Golden rice has been genetically engineered to produce which nutrient precursor?
  • A. Vitamin C
  • B. Beta-carotene (provitamin A)
  • C. Vitamin E
  • D. Folic acid
Correct Answer: B
Explanation:
Golden rice contains genes for beta-carotene biosynthesis, which is a precursor of vitamin A, to help alleviate vitamin A deficiency.
Related Question 1
Genetically modified crops containing the Bt (Bacillus thuringiensis) toxin gene are resistant to:
  • A. Herbicides
  • B. Insect pests
  • C. Drought
  • D. Viral infection
Correct Answer: B
Explanation:
The Bt gene encodes an insecticidal protein. Plants expressing Bt produce a toxin that targets specific insect pests, providing built-in insect resistance.