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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 solve the question of selecting the ambiguous codon, let's break down the information step by step: ### 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. **Types of Codons**: - There are 64 possible codons (4^3 combinations of the four bases: A, U, G, C). - Out of these, 61 codons code for amino acids, while 3 are stop codons that signal the end of translation. 3. **Ambiguous Codons**: - An ambiguous codon is one that can code for more than one amino acid depending on its context. - The most notable example of an ambiguous codon is AUG, which serves as both the start codon and codes for methionine. 4. **Identifying the Ambiguous Codon**: - The question asks for an ambiguous codon. Based on the video transcript, GUG is highlighted as an ambiguous codon because it can code for valine when it appears in the middle of a sequence, but can also code for methionine when it is at the start of the sequence. 5. **Conclusion**: - Therefore, GUG is the ambiguous codon as it can represent two different amino acids based on its position in the mRNA sequence. ### Final Answer: The ambiguous codon is **GUG**. ---
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