To determine the dipeptides that will be formed from the given mRNA sequence and the available tRNA anticodons, we need to follow these steps:
1. Identify the mRNA codons: The given mRNA sequence is [tex]\(5' \text{CCG ACG} 3'\)[/tex]. We split this sequence into two codons:
[tex]\[
\begin{aligned}
&\text{Codon 1: CCG} \\
&\text{Codon 2: ACG}
\end{aligned}
\][/tex]
2. Pair each mRNA codon with the appropriate tRNA anticodon: To find the tRNA anticodon that pairs with each mRNA codon, we need to apply the complementary base-pairing rules (A pairs with U, C pairs with G, G pairs with C, and U pairs with A). Note that tRNA anticodons are conventionally written in the [tex]\(3' \rightarrow 5'\)[/tex] direction.
- For mRNA codon [tex]\( \text{CCG} \)[/tex]:
[tex]\[
\text{Anticodon: GGC (3' to 5')}
\][/tex]
This anticodon corresponds to the amino acid Proline.
- For mRNA codon [tex]\( \text{ACG} \)[/tex]:
[tex]\[
\text{Anticodon: UGC (3' to 5')}
\][/tex]
This anticodon corresponds to the amino acid Threonine.
3. Determine the amino acids: Based on the pairing, we obtain:
- Codon [tex]\( \text{CCG} \)[/tex] pairs with tRNA anticodon [tex]\( \text{GGC} \)[/tex], attaching Proline.
- Codon [tex]\( \text{ACG} \)[/tex] pairs with tRNA anticodon [tex]\( \text{UGC} \)[/tex], attaching Threonine.
4. Form the dipeptide: Combining the amino acids from each codon results in the formation of the dipeptide:
[tex]\[
\text{Proline} - \text{Threonine}
\][/tex]
Therefore, the dipeptide that will be formed from the given mRNA sequence and tRNA molecules is Proline-Threonine.
