Which of the following is an incorrect statement?

Options

A. Roots are positively geotropic
B. Roots are always postively phototropic
C. Roots are negatively photoropic
D. Both 1 and 2

Answer

To determine which of the statements about roots is incorrect, we can analyze each statement provided in the question.

1. **Understanding Geotropism**:
- Roots are positively geotropic, meaning they grow towards the gravitational pull. This statement is correct.
- Roots exhibit this behavior as they anchor the plant and help in water and mineral absorption.

2. **Understanding Phototropism**:
- The term "phototropic" refers to the growth of an organism in response to light.
- Roots are generally negatively phototropic, meaning they grow away from light. This is because roots typically grow underground where light is not present.

3. **Evaluating the Statements**:
- The first statement claims that roots are positively phototropic, which is incorrect because roots do not grow towards light; they grow away from it.
- The second statement claims that roots are positively geotropic, which is correct as they grow towards gravity.
- The third statement claims that roots are negatively phototropic, which is also correct.

4. **Conclusion**:
- The incorrect statement among the options is that roots are positively phototropic. Therefore, the answer is that roots are negatively phototropic.

### Summary of the Solution:
- Roots are positively geotropic (correct).
- Roots are negatively phototropic (correct).
- Roots are not positively phototropic (incorrect).

### Final Answer:
The incorrect statement is that roots are positively phototropic.