Golden rice - a transgenic variety of rice - is principlly richer than normal rice in

Options

A. Cry I Ab
B. Hirudin
C. TPA
D. `beta`- carotene

Answer

### Step-by-Step Solution:

1. **Understanding Golden Rice**: Golden rice is a genetically modified (transgenic) variety of rice, specifically developed to address vitamin A deficiency in populations that rely heavily on rice as a staple food.

2. **Identifying Key Components**: The main component that differentiates golden rice from normal rice is its enhanced nutritional profile. This includes the presence of beta-carotene, which is a precursor to vitamin A.

3. **Role of Beta-Carotene**: Beta-carotene is a carotenoid that gives the rice its yellow color. It is converted into vitamin A in the body, which is essential for various bodily functions including vision, immune function, and skin health.

4. **Conclusion**: Given the options provided, golden rice is principally richer in beta-carotene compared to normal rice. Therefore, the correct answer is that golden rice is richer in beta-carotene.

### Final Answer:
Golden rice is principally richer than normal rice in **beta-carotene**.

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