A transgenic rice (Gloden rice) has been developed for increased content of:

Options

A. Vitamin A
B. Vitamin `B_(1)`
C. Vitamin C
D. Vitamin D

Answer

**Step-by-Step Solution:**

1. **Understanding Transgenic Rice**: Transgenic rice refers to rice that has been genetically modified to express certain traits. In this case, we are discussing "Golden Rice."

2. **Identifying the Purpose of Golden Rice**: Golden Rice has been developed specifically to address nutritional deficiencies. It is engineered to have enhanced nutritional content.

3. **Key Component of Golden Rice**: The primary enhancement in Golden Rice is the increased production of beta-carotene. This is a pigment that gives the rice its golden color.

4. **Conversion of Beta-Carotene**: Beta-carotene is significant because it is a precursor to vitamin A. When consumed, the body converts beta-carotene into vitamin A, which is essential for various bodily functions, including vision and immune response.

5. **Conclusion**: Given that Golden Rice is designed to combat vitamin A deficiency by providing a source of beta-carotene, we can conclude that the transgenic rice has been developed for increased content of vitamin A.

6. **Final Answer**: Therefore, the correct answer is **option A: vitamin A**.

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