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Golden Rice is a genetically modified crop developed by inserting a gene for the synthesis of:
ABt insecticidal toxin
BThe amino acid cysteine
CBeta carotene
DGrowth hormone
Answer & Solution
Correct answer: C. Beta carotene
1. Golden Rice was engineered to improve nutritional quality of rice.
2. The beta carotene gene was inserted, since beta carotene is needed to make Vitamin C and prevents its deficiency.
3. The Bt gene gives insect resistance and cysteine genes improve wool, so options A and B belong to other GM examples.
4. Hence the answer is C.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Breeding and Biotechnology", p.302_
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