Which one of the following amino-acids was not found to be synthesized in Miller's experiment

Options

A. Glycine
B. Aspartic aci
C. Glutamic acid
D. Alanine

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which amino acid was not synthesized in Miller's experiment. The options provided are glycine, aspartic acid, glutamic acid, and alanine.

2. **Background on Miller's Experiment**: In 1953, Stanley Miller and Harold Urey conducted an experiment to simulate the conditions of early Earth. They aimed to see if organic compounds could be formed from inorganic precursors under conditions thought to resemble those of the primitive Earth.

3. **Results of the Experiment**: Miller and Urey successfully synthesized several amino acids in their experiment. The amino acids that were synthesized include:
- Glycine
- Aspartic acid
- Alanine

4. **Identifying the Amino Acid Not Synthesized**: Among the amino acids listed in the options, glutamic acid was not synthesized during Miller's experiment. This is a key point that distinguishes it from the other amino acids.

5. **Conclusion**: Therefore, the amino acid that was not found to be synthesized in Miller's experiment is **glutamic acid**.

**Final Answer**: Glutamic acid (Option C).

---