Who gave experimental proof that hydrogen, methane, water and ammoia gave rise to amino acidss :

Options

A. Stanley Miller
B. Charles Darwin
C. Lamarck
D. Oparin

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the scientist who provided experimental proof that certain gases (hydrogen, methane, water, and ammonia) can lead to the formation of amino acids.

2. **Identifying the Key Scientists**: The options given are Stanley Miller, Charles Darwin, Lamarck, and Oparin. We need to analyze their contributions to determine who conducted the relevant experiments.

3. **Analyzing Stanley Miller's Contribution**: Stanley Miller, along with Harold Urey, conducted a famous experiment in 1953 known as the Miller-Urey experiment. They simulated the conditions of early Earth by mixing hydrogen, methane, ammonia, and water vapor in a closed system and applying electrical sparks to mimic lightning. This experiment resulted in the formation of amino acids, which are the building blocks of proteins.

4. **Considering Other Scientists**:
- **Charles Darwin** is known for his theory of evolution through natural selection, not for experiments related to the origin of life.
- **Lamarck** proposed the theory of inheritance of acquired characteristics, which does not relate to the chemical synthesis of organic compounds.
- **Oparin** theorized about the origin of life and the conditions of early Earth but did not conduct the experimental proof himself.

5. **Conclusion**: Based on the analysis, the correct answer is Stanley Miller, as he provided the experimental proof that the combination of hydrogen, methane, water, and ammonia could lead to the formation of amino acids.

**Final Answer**: Stanley Miller

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