Which of the following is incorrect for golden rice?

Options

A. It is a transgenic variety of Oriza sativa
B. It contains increased quantities of β-carotene
C. Gene for β-carotene has been taken from the daffodil plant
D. Seeds of golden rice are white in colour

Answer

To determine which statement about golden rice is incorrect, let's analyze each option step by step.

### Step 1: Identify the first statement
The first statement is: "It is a transgenic variety of Oryza sativa."
- **Analysis**: Golden rice is indeed a genetically modified (transgenic) variety of the rice species Oryza sativa.
- **Conclusion**: This statement is **correct**.

### Step 2: Identify the second statement
The second statement is: "It contains increased quantities of beta carotene."
- **Analysis**: Golden rice has been engineered to produce higher levels of beta carotene, which is a precursor of vitamin A.
- **Conclusion**: This statement is **correct**.

### Step 3: Identify the third statement
The third statement is: "The gene for beta carotene has been taken from the daffodil plant."
- **Analysis**: The genes responsible for the production of beta carotene in golden rice were indeed derived from the daffodil plant (Narcissus pseudonarcissus) and also from a bacterium (Erwinia uredovora).
- **Conclusion**: This statement is **correct**.

### Step 4: Identify the fourth statement
The fourth statement is: "Seeds of golden rice are white in color."
- **Analysis**: Golden rice is named for its yellow color, which is due to the presence of beta carotene. Therefore, this statement is incorrect.
- **Conclusion**: This statement is **incorrect**.

### Final Conclusion
The incorrect statement about golden rice is: "Seeds of golden rice are white in color."