UAG is called

Options

A. Ochre
B. Amber
C. Opal
D. Initiator

Answer

**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 UAG**: The codon UAG is one of the three stop codons in the genetic code. Stop codons signal the termination of protein synthesis.

3. **Types of Stop Codons**: There are three stop codons in the genetic code:
- UAA (Ochre)
- UAG (Amber)
- UGA (Opal)

4. **Naming the Codons**: Each stop codon has a specific name:
- UAA is called Ochre.
- UAG is called Amber.
- UGA is called Opal.

5. **Conclusion**: Since the question specifically asks what UAG is called, the correct answer is Amber.

**Final Answer**: UAG is called Amber.

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