Due to an error during transcription, ATG of DNA formed UAG in mRNA. What would happen to the polypeptide chain during translation by this changed mRNA?

Explanation

To solve the question regarding the effect of the transcription error that changes ATG in DNA to UAG in mRNA, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Transcription**:
- Transcription is the process where DNA is converted into messenger RNA (mRNA). In this case, the DNA sequence ATG is transcribed into UAG in mRNA due to an error.

2. **Identifying the Codon**:
...