During protein synthesis in an organism at one point the process comes to a halt. Select the group o the three codons from the following, from which any one of the three could bring about this halt.

Options

A. UUU,UCC,UAU
B. UUC,UUA,UAC
C. UAG,UGA,UAA
D. UUG,UCA,UCG

Answer

To solve the question regarding which group of codons can halt the process of protein synthesis, we need to understand the role of codons in translation.

### Step-by-Step Solution:

1. **Understanding Codons**: Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or signals during protein synthesis.

2. **Identifying Stop Codons**: In the context of translation, there are specific codons known as stop codons that signal the termination of protein synthesis. The three stop codons are:
- UAA
- UAG
- UGA

3. **Recognizing Start Codons**: There are also start codons, which signal the beginning of translation. The most common start codon is AUG, which codes for Methionine.

4. **Analyzing the Question**: The question asks for a group of three codons that could bring about a halt in protein synthesis. Since we are looking for stop codons, we need to identify a set that includes any of the three stop codons mentioned.

5. **Selecting the Correct Group**: The group of codons provided in the question includes UAA, UAG, and UGA. Since all three of these are recognized as stop codons, any one of them could halt the process of translation.

6. **Conclusion**: Therefore, the correct answer is the group of codons: UAA, UAG, and UGA.

### Final Answer:
The group of codons that could bring about a halt in protein synthesis is UAA, UAG, and UGA.

---