Khorana got the Nobel Prize on

Options

A. t-RNA
B. Genetic code
C. Carbohydrate metabolism
D. Protein synthesis

Answer

**Step-by-Step Solution:**

1. **Identify the Subject**: The question asks about Hargobind Khorana and the Nobel Prize he received.

2. **Recall the Nobel Prize Year**: Hargobind Khorana was awarded the Nobel Prize in the year 1968.

3. **Understand the Contribution**: Khorana's research was focused on how nucleotides in nucleic acids carry the genetic code and how this code controls the synthesis of proteins in cells.

4. **Analyze the Options**: The options provided are:
- tRNA
- Genetic code
- Carbohydrate metabolism
- Protein synthesis

5. **Evaluate Each Option**:
- **tRNA**: The Nobel Prize related to tRNA was awarded to Dr. Robert W. Holley.
- **Genetic Code**: The Nobel Prize for the genetic code was awarded to Dr. Marshall W. Nirenberg.
- **Carbohydrate Metabolism**: The Nobel Prize in this area was awarded to Dr. Carl and Dr. Gerty Cori.
- **Protein Synthesis**: This is the area in which Hargobind Khorana made significant contributions.

6. **Select the Correct Answer**: Based on the evaluation, the correct answer is that Khorana received the Nobel Prize for his work on protein synthesis.

**Final Answer**: Khorana got the Nobel Prize on protein synthesis.

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