0
The initiator tRNA is first attached at the start codon (AUG) on the mRNA. The anticodon of the initiator tRNA base pairs with the start codon, signaling the beginning of translation.
Add your answer:
Earn +20 pts
What is the step of translation in which an mRNA a small ribosomal subunit and the initiator tRNA are aligned together is?
The step of translation in which an mRNA, a small ribosomal subunit, and the initiator tRNA are aligned together is called initiation. This process occurs with the formation of the initiation complex, where the mRNA binds to the small ribosomal subunit and the initiator tRNA carrying methionine binds to the start codon on the mRNA.
Which two structures are first to combine in translation?
The small ribosomal subunit and the initiator tRNA molecule are the first two structures to combine in translation. The initiator tRNA molecule carries the amino acid methionine, which is the first amino acid in the polypeptide chain.
Which best summarizes the process of protein synthesis?
.........................This is what it is americans.................. 1. an mRNA molecule binds to the small ribosomal subunit at the mRNA biding site. A special tRNA, called initiator tRNA, binds to the start codon (AUG) on mRNA, where translation begins. The tRNA anticodon (UAC) attaches to the mRNA codon (AUG) by pairing between the complementary bases. Besides being the start codon, AUG is also the codon for the amino acid methionine. Thus, methionine is always the first amino acid in a growing polypeptide2. Next, the large ribosomal subunit attaches to the small ribosomal subunit-mRNA complex, creating a functional ribosome. The initiator tRNA, with its amino acid (methionine), fits into the P site of the ribosome.3. The anticodon of another tRNA with its attached amino acid pairs with the second mRNA codon at the A site of the ribosome.4. A component of the large ribosomal subunit catalyzes the formation of a peptide bond between methionine, which separates from its tRNA at the P site, and the amino acid carried by the tRNA at the A site.5. After peptide bond formation, the empty tRNA at the P site detaches from the ribosome, and the ribosome shifts the mRNA strand by one codon. The tRNA in the A site bearing the two-peptide protein shifts into the P site, allowing another tRNA with its amino acid to bind to a newly exposed codon at the A site. Steps 3 through 5 occur repeatedly, and the protein lengthens progressively.6. Protein synthesis ends when the ribosome reaches a stop codon at the A site, which causes the completed protein to detach from the final tRNA. When the tRNA vacates the A site, the ribosome splits into its large and small subunits.Read more: List_the_sequence_of_events_that_happens_during_protein_synthesis
What are the differences between a charged tRNA and an uncharged tRNA?
Well, charged tRNA means it has an amino acid attached. And a charged tRNA can read the codon of mRNA during translation.the charged tRNA mean that the correct amino acid is attached. uncharged means no amino acid is attached. mischarged means the wrong amino acid is attached. if the wrong amino acid is attached then there may be low levels which can cause misfolded proteins.
What is the role of mRNA and tRNA in the production of protein?
mRNA carries the genetic information from DNA to the ribosome, where proteins are synthesized. tRNA helps to translate the mRNA code into a specific amino acid sequence by matching the codons on the mRNA with the complementary anticodons on the tRNA. This process ensures that the correct amino acids are brought to the ribosome and linked together to form a protein.
What is the step of translation in which an mRNA a small ribosomal subunit and the initiator tRNA are aligned together is?
The step of translation in which an mRNA, a small ribosomal subunit, and the initiator tRNA are aligned together is called initiation. This process occurs with the formation of the initiation complex, where the mRNA binds to the small ribosomal subunit and the initiator tRNA carrying methionine binds to the start codon on the mRNA.
Which two structures are first to combine in translation?
The small ribosomal subunit and the initiator tRNA molecule are the first two structures to combine in translation. The initiator tRNA molecule carries the amino acid methionine, which is the first amino acid in the polypeptide chain.
Translation begins when the initiator tRNA binds to the?
start codon on the mRNA strand. This signals the ribosome to begin assembling the amino acid sequence based on the mRNA instructions.
Where does initiation of translation occur?
An initiation complex for translation forms by the assembly of the ribosomal subunits and initiator tRNA (met-tRNA) at the start codon on the mRNA.
What is an initiator codon?
Initating codons- the small ribosomal subunit, the mRNA bonded to it, and the initator tRNA with its attached methionine form the initation complex.
When a tRNA anticodon bind to an mRNA codon the amino acid detaches from the tRNA molecule and attaches to the end of a growing protein chain?
Yes, when a tRNA anticodon binds to an mRNA codon during translation, the amino acid that was carried by the tRNA detaches from the tRNA molecule and becomes part of a growing polypeptide chain. This process ensures that the protein is built in the correct sequence dictated by the mRNA codons.
What are the differences between charged tRNA and uncharged tRNA?
Charged tRNA has an amino acid attached to it, ready for protein synthesis, while uncharged tRNA does not have an amino acid attached. Charged tRNA binds to the appropriate codon on the mRNA during translation, while uncharged tRNA cannot participate in translation.
Transfer RNA carries what to the messenger RNA?
When mRNA is being translated, it is attached to a ribosome. The tRNA brings an amino acid to be attached to the growing polypeptide chain connected to the ribosome. It interacts with the mRNA because the tRNA's anticodon has to be correctly paried with the mRNA's codon. This ensures that the right amino acid will be added to the polypeptide.
During translation the type of amino acid that is added to the growing polypeptide depends on what?
D. codon on the mRNA and the anticodon on the tRNA to which the amino acid is attached. __________ On my packet it says answer C. Codon on the mRNA and the anticodon on the tRNA but it's all the same thing XD
Why does a particular tRNA becomes temporarily attached only to a specific triplet of mRNA?
Each tRNA molecule contains a specific three-base segment (anticodon) which binds to the complementary codon in mRNA,and a binding site for a specific amino acid.
Which type of RNA contains the codon?
Messenger RNA (mRNA) contains the codons, which are three-nucleotide sequences that code for specific amino acids during protein synthesis. The codons on mRNA are recognized by transfer RNA (tRNA) molecules, which carry the corresponding amino acids to the ribosome for protein production.
Which best summarizes the process of protein synthesis?
.........................This is what it is americans.................. 1. an mRNA molecule binds to the small ribosomal subunit at the mRNA biding site. A special tRNA, called initiator tRNA, binds to the start codon (AUG) on mRNA, where translation begins. The tRNA anticodon (UAC) attaches to the mRNA codon (AUG) by pairing between the complementary bases. Besides being the start codon, AUG is also the codon for the amino acid methionine. Thus, methionine is always the first amino acid in a growing polypeptide2. Next, the large ribosomal subunit attaches to the small ribosomal subunit-mRNA complex, creating a functional ribosome. The initiator tRNA, with its amino acid (methionine), fits into the P site of the ribosome.3. The anticodon of another tRNA with its attached amino acid pairs with the second mRNA codon at the A site of the ribosome.4. A component of the large ribosomal subunit catalyzes the formation of a peptide bond between methionine, which separates from its tRNA at the P site, and the amino acid carried by the tRNA at the A site.5. After peptide bond formation, the empty tRNA at the P site detaches from the ribosome, and the ribosome shifts the mRNA strand by one codon. The tRNA in the A site bearing the two-peptide protein shifts into the P site, allowing another tRNA with its amino acid to bind to a newly exposed codon at the A site. Steps 3 through 5 occur repeatedly, and the protein lengthens progressively.6. Protein synthesis ends when the ribosome reaches a stop codon at the A site, which causes the completed protein to detach from the final tRNA. When the tRNA vacates the A site, the ribosome splits into its large and small subunits.Read more: List_the_sequence_of_events_that_happens_during_protein_synthesis
