Most advanced theory of origin of life is that of

Options

A. Catastrophic
B. Haldane and Oparin
C. Cosmozoic
D. Spontaneous.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the most advanced theory of the origin of life.

2. **Review the Options**: The options provided are:
- A) Gastrotrophic
- B) Haldane and Oparin
- C) Cosmozoic
- D) Spontaneous

3. **Analyze Each Option**:
- **Gastrotrophic**: This term does not relate to any well-known theory of the origin of life.
- **Haldane and Oparin**: This refers to the Oparin-Haldane hypothesis, which is a widely accepted theory suggesting that life originated from inorganic molecules through a gradual process.
- **Cosmozoic**: This theory suggests that life came to Earth from outer space, but it is not considered the most advanced or accepted theory.
- **Spontaneous**: This term generally refers to the idea of spontaneous generation, which has been largely discredited.

4. **Select the Most Advanced Theory**: Based on the analysis, the Oparin-Haldane hypothesis is recognized as the most advanced theory of the origin of life, as it is supported by experimental evidence.

5. **Supporting Evidence**: The Miller-Urey experiment is a key piece of evidence that supports the Oparin-Haldane hypothesis. This experiment simulated early Earth conditions and resulted in the formation of organic molecules, such as amino acids.

6. **Conclusion**: Therefore, the most advanced theory of the origin of life is the Haldane and Oparin theory.

**Final Answer**: The most advanced theory of the origin of life is that of Haldane and Oparin.

---