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Select the ambiguous codon...

Select the ambiguous codon

A

GUG

B

AUG

C

UUU

D

AAG

Text Solution

AI Generated Solution

The correct Answer is:
To determine the ambiguous codon from the given options, we will analyze each codon based on the information provided in the video transcript. ### Step-by-Step Solution: 1. **Understand the Definition of Ambiguous Codon**: - An ambiguous codon is a codon that can code for more than one amino acid. Typically, each codon corresponds to a single amino acid, but some codons can have dual functions depending on their position in the mRNA sequence. 2. **Review the Options**: - The options provided are: - A) GUG - B) AUG - C) UUU - D) UAA 3. **Analyze Each Codon**: - **Option A: GUG** - GUG can code for Valine when it is in the middle of the chain and can also code for Methionine when it is at the start of the chain (initiator codon). Thus, it can code for two different amino acids. - **Option B: AUG** - AUG codes for Methionine and also serves as the start codon. However, it does not code for any other amino acid, so it is not ambiguous. - **Option C: UUU** - UUU codes exclusively for Phenylalanine. It does not have any other coding potential, making it a specific codon, not ambiguous. - **Option D: UAA** - UAA is a stop codon and does not code for any amino acids. Therefore, it is not ambiguous. 4. **Conclusion**: - Based on the analysis, the only codon that can code for more than one amino acid is **GUG**. Hence, the ambiguous codon is **GUG**. ### Final Answer: The ambiguous codon is **GUG**. ---
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