Which of the following codons is knows as ochre ?

Options

A. UAG
B. UGA
C. UAA
D. UUU

Answer

To determine which codon is known as "ochre," we can follow these steps:

### Step-by-Step Solution:

1. **Understand Codons**: Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or serve as stop signals during protein synthesis. There are a total of 64 possible codons.

2. **Identify Stop Codons**: Among the 64 codons, there are specific codons that act as stop signals for protein synthesis. The three stop codons are:
- UAA
- UAG
- UGA

3. **Recognize the Names of Stop Codons**: Each stop codon has a specific name:
- UAA is known as "ochre."
- UAG is known as "amber."
- UGA is known as "opal."

4. **Select the Correct Answer**: Since the question specifically asks for the codon known as "ochre," we identify that UAA is the correct answer.

5. **Final Answer**: Therefore, the codon known as "ochre" is UAA.