Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Get quick and reliable solutions to your questions from a community of experienced experts on our platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

A part of an mRNA molecule with the following sequence is being read by a ribosome: [tex]$5^{\prime}-C C G-A C G-3^{\prime}$[/tex] (mRNA). The charged transfer RNA molecules shown in the figure (with their anticodons shown in the [tex]$3^{\prime}$[/tex] to [tex]$5^{\prime}$[/tex] direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form.

The dipeptide that will form will be

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

A. threonine-glycine
B. glycine-cysteine
C. cysteine-alanine
D. proline-threonine
E. alanine-alanine

Sagot :

GinnyAnswer
To determine which dipeptide will form, we'll go through the following steps:

1. Understand mRNA Codons:
mRNA codons read in the 5' to 3' direction are:
- [tex]$5'-C C G-3'$[/tex]
- [tex]$5'-A C G-3'$[/tex]

2. Find Complementary tRNA Anticodons:
tRNA anticodons are read in the 3' to 5' direction to match the mRNA codons. Therefore:
- The complementary anticodon for the mRNA codon [tex]$5'-C C G-3'$[/tex] will be [tex]$3'-G G C-5'$[/tex].
- The complementary anticodon for the mRNA codon [tex]$5'-A C G-3'$[/tex] will be [tex]$3'-U G C-5'$[/tex].

3. Match Anticodons with tRNA Chart:
Using the given tRNA anticodon table, we match the anticodons with their corresponding amino acids:
- Anticodon [tex]$3'-G G C-5'$[/tex] corresponds to Proline
- Anticodon [tex]$3'-U G C-5'$[/tex] corresponds to Threonine

4. Determine the Amino Acid Sequence:
The mRNA sequence [tex]$5'-C C G-3'$[/tex] corresponds to Proline, and the mRNA sequence [tex]$5'-A C G-3'$[/tex] corresponds to Threonine.

Therefore, the dipeptide formed by these two mRNA codons will be:

Proline-Threonine

Based on the provided options in the question, the correct answer is:

Proline-Threonine.
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.