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When the ribosome encounters the codon UGA during translation, it recognizes it as a stop codon. This signals the termination of protein synthesis, leading to the release of the newly synthesized polypeptide chain from the ribosome. Release factors bind to the ribosome, facilitating the disassembly of the ribosomal complex and the release of the mRNA. As a result, translation ends, and the ribosome is free to initiate translation of another mRNA.
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What ends translation in DNA?
a stop codon or anti-codon (same thing)
What is the function of a stop condon?
A stop codon, such as UAA, UAG, or UGA, signals the termination of protein synthesis during translation. When a ribosome reaches a stop codon, it recognizes the signal and releases the completed protein from the ribosome.
What is the anti-codon for UGA?
The anti-codon for the mRNA codon UGA is ACU. In the context of tRNA, this sequence pairs with the codon during protein synthesis. However, it's important to note that UGA is a stop codon, meaning it signals the termination of protein synthesis and does not correspond to an amino acid.
Do stop codon have an amino acid?
A stop codon (UGA, UAA, UAG) only codes for a stop. No amino acid results from a stop codon.
What do we call a codon that signals the end of a polypeptide chain?
A codon that signals the end of a polypeptide chain is called a stop codon. There are three specific stop codons in the genetic code: UAA, UAG, and UGA. When a ribosome encounters one of these codons during translation, it triggers the termination of protein synthesis.
What ends translation in DNA?
a stop codon or anti-codon (same thing)
What will happen if the ribosome reads uaa uag or uga?
If you are asking this question to cheat at school shame on you. But I don't care I don't know you, I'm not your parent or teacher. It will read "STOP". actually, this answer is correct. When the ribosome reads uaa, uag, or uga, these sequences are known as stop codons. It will read stop. Also, no tRNA can bind to a stop codon... there are no tRNAs with anticodons complementary to the termination codons, so no tRNA enters the A site of the ribosome. Release factors are induced. RF1 to either UAA or UAG, RF2 to either UGA or UAA. RF3 forms a complex with GTP (energy source) and binds to the ribosome. These release factors promote cleave of the tRNA in the P site. GTP is hydrolyzed (reduced) to GDP. The tRNA is released from the P site, mRNA is released from the ribosome, and the ribosome leaves. -zdrum
What code tells a cell to stop making a protein?
The code for a cell to stop making a protein is a stop codon in the mRNA sequence. Proteins are synthesized by the ribosome until it encounters a stop codon (e.g., UAA, UAG, UGA), which signals the end of translation, leading to the release of the protein and dissociation of the ribosome from the mRNA.
How does the termination of translation occur?
Termination of translation occurs when a stop codon (UAA, UAG, or UGA) is reached in the mRNA sequence. The ribosome recognizes the stop codon, releasing the polypeptide chain from the ribosome, and translation machinery disassembles. The newly synthesized protein is then free to fold into its functional conformation.
What is non sense codon?
A nonsense codon, also known as a stop codon, is a three-nucleotide sequence in mRNA that signals the termination of translation. When a ribosome encounters a stop codon, protein synthesis stops, and the incomplete polypeptide chain is released. There are three stop codons: UAG, UAA, and UGA.
What is the function of a stop condon?
A stop codon, such as UAA, UAG, or UGA, signals the termination of protein synthesis during translation. When a ribosome reaches a stop codon, it recognizes the signal and releases the completed protein from the ribosome.
When does translation end in eukaroytes?
Translation in eukaryotes ends when a stop codon (UAA, UAG, or UGA) is encountered by the ribosome. This signals the termination of protein synthesis and the release of the newly formed polypeptide chain from the ribosome.
What is the anti-codon for UGA?
The anti-codon for the mRNA codon UGA is ACU. In the context of tRNA, this sequence pairs with the codon during protein synthesis. However, it's important to note that UGA is a stop codon, meaning it signals the termination of protein synthesis and does not correspond to an amino acid.
How does the ribosome know how to stop making a protein?
It reaches one of the 3 possible stop codons on the mRNA: UAA, UGA, or UAG. These codons do not code for any amino acid, but instead cause the polypeptide release factor to cleave the newly made protein from the last tRNA. (ed. spelling - I mixed got my words up :)
Do stop codon have an amino acid?
A stop codon (UGA, UAA, UAG) only codes for a stop. No amino acid results from a stop codon.
What do we call a codon that signals the end of a polypeptide chain?
A codon that signals the end of a polypeptide chain is called a stop codon. There are three specific stop codons in the genetic code: UAA, UAG, and UGA. When a ribosome encounters one of these codons during translation, it triggers the termination of protein synthesis.
Where do you find a anticodon?
Codon is found on the messenger RNA(m RNA).During translation, the codons on the m RNA are read by the ribosome and amino acid corresponding to the codon is added. when ribosome encounters a stop codon (UAG,UGA and UAA) translation terminates.
