The non-sense codons are

Options

A. UUC ,UGG, UGA
B. UGG ,UAA, UGA
C. UUA ,UGA, UAG
D. UAG ,UGA, UAA

Answer

To solve the question regarding non-sense codons, we need to understand what nonsense codons are and identify them from the given options.

### Step-by-Step Solution:

1. **Understanding Nonsense Codons**:
- Nonsense codons, also known as stop codons, are specific sequences in mRNA that signal the termination of protein synthesis (translation).
- They do not code for any amino acid and are recognized by the ribosome to stop translation.

2. **Identifying the Nonsense Codons**:
- The three main nonsense codons (stop codons) in the genetic code are:
- UAG (Amber)
- UAA (Ochre)
- UGA (Opal)

3. **Analyzing the Options**:
- The question provides several options, and we need to identify which one contains the nonsense codons.
- The options given are:
- A: UUC UCG UGA
- B: UGG UAA UGA
- C: UUA UGA UAG
- D: UAG UGA UAA

4. **Matching with Known Nonsense Codons**:
- From the options, we look for UAG, UAA, and UGA.
- Option D: UAG UGA UAA contains all three nonsense codons.

5. **Conclusion**:
- Therefore, the correct answer to the question is **Option D: UAG UGA UAA**.

### Final Answer:
**Option D: UAG UGA UAA**