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Match the mRNA to the tRNA anticodon so that a dipeptide can form.

\begin{tabular}{|c|c|}
\hline
tRNA Anticodon & Amino Acid \\
\hline
GGC & Proline \\
\hline
CGU & Alanine \\
\hline
UGC & Threonine \\
\hline
GGC & Glycine \\
\hline
ACG & Cysteine \\
\hline
CGG & Alanine \\
\hline
\end{tabular}

Which of the following dipeptides will be formed?

A. Proline-Threonine
B. Glycine-Cysteine
C. Alanine-Alanine
D. Cysteine-Alanine

Sagot :

GinnyAnswer
To determine which of the given dipeptides can be formed using the provided tRNA anticodons and their corresponding amino acids, we will analyze the possibilities based on the given mappings. Here is the step-by-step process:

### Step 1: Understand the Given Data
We are given a table that maps tRNA anticodons to their corresponding amino acids:
- GGC -> Proline
- CGU -> Alanine
- UGC -> Threonine
- COG -> Glycine
- ACG -> Cysteine
- CGG -> Alanine

### Step 2: List the Available Dipeptides
We need to check the possibility of forming the following dipeptides:
- Proline-Threonine
- Glycine-Cysteine
- Alanine-Alanine
- Cysteine-Alanine

### Step 3: Verify Each Dipeptide Against the tRNA-Amino Acid Mapping

1. Proline-Threonine
- Proline corresponds to tRNA anticodon GGC.
- Threonine corresponds to tRNA anticodon UGC.
- Both Proline (GGC) and Threonine (UGC) are present in the given mapping.
- Therefore, Proline-Threonine can be formed.

2. Glycine-Cysteine
- Glycine corresponds to tRNA anticodon COG.
- Cysteine corresponds to tRNA anticodon ACG.
- Both Glycine (COG) and Cysteine (ACG) are present in the given mapping.
- Therefore, Glycine-Cysteine can be formed.

3. Alanine-Alanine
- Alanine corresponds to tRNA anticodons CGU and CGG.
- Both Alanine (CGU) and Alanine (CGG) are present in the given mapping.
- Therefore, Alanine-Alanine can be formed.

4. Cysteine-Alanine
- Cysteine corresponds to tRNA anticodon ACG.
- Alanine corresponds to tRNA anticodons CGU and CGG.
- Both Cysteine (ACG) and Alanine (CGU or CGG) are present in the given mapping.
- Therefore, Cysteine-Alanine can be formed.

### Conclusion
Based on the provided tRNA anticodon to amino acid mapping, the following dipeptides can be formed:
- Proline-Threonine
- Glycine-Cysteine
- Alanine-Alanine
- Cysteine-Alanine

So, the four given dipeptides will all be formed.
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