Find out the incorrect match
(a) UUU - Phenylalanine
(b) UAG-Arginine
(c) GUG-Valine
(d) UGG-Tryptophan

Options

A. UUU - Phenylalanine
B. UAG-Arginine
C. GUG-Valine
D. UGG-Tryptophan

Answer

To solve the question of finding the incorrect match among the given codons and their corresponding amino acids, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Codons and Amino Acids**:
- Codons are sequences of three nucleotides that correspond to specific amino acids or stop signals during protein synthesis. There are 64 possible codons, of which 61 code for amino acids and 3 are stop codons.

2. **Evaluate Each Option**:
- **Option (a)**: UUU - Phenylalanine
- UUU is known to code for Phenylalanine. This is a correct match.

- **Option (b)**: UAG - Arginine
- UAG is a stop codon, which means it does not code for any amino acid, including Arginine. This is an incorrect match.

- **Option (c)**: GUG - Valine
- GUG codes for Valine. This is a correct match.

- **Option (d)**: UGG - Tryptophan
- UGG codes for Tryptophan. This is a correct match.

3. **Identify the Incorrect Match**:
- From the evaluation, the only incorrect match is **Option (b)**: UAG - Arginine, since UAG is a stop codon and does not code for any amino acid.

### Final Answer:
The incorrect match is **(b) UAG - Arginine**.