0
If no stop codon was transcribed, you would end up with something like the weed killer 2-4-D. It works by making a plant grow and grow and grow until all its resources are exhausted and then the plant dies. Without a stop codon, a cell would become filled with a product, such a a virus. Suddenly the cell would burst open and release its contents and the bloodstream would be filled with viruses.
What else can I help you with?
What would happen if during translation of a protein the mRNA codon UAA sequence was presented?
If the mRNA codon UAA is encountered during translation, it serves as a stop codon, signaling the ribosome to stop protein synthesis and release the completed protein. This results in the premature termination of translation, leading to a shorter and incomplete protein being produced.
What would happen if the DNA sequence that coded for Cys was mutated in the third position from a U to an A?
This mutation would change the codon from UGU (coding for Cys) to UGA, which is a stop codon. As a result, translation would be terminated prematurely, leading to a truncated protein. This could disrupt the normal function of the protein or render it nonfunctional.
What is the stop codon in most molecules of mRNA?
stop codon on mRNA
What would happen if the very last stop codon of a mRNA molecule was mutated into a regular codon?
That isn't exactly a mutation; it's more like degradation. It would basically mean that mRNA, which is made up of multiple codons, will deteriorate into a codon, which is only 3 nucleic acids combined together. Such corrosion would probably result in the cell breaking the codon like how it normally does mRNA, or it will be absorbed into the nucleus to be combined to form a normal mRNA.
What is the shortest gene?
The shortest gene is theoretically a single codon gene which codes for a single amino acid. This gene would consist of a start codon (AUG) and a stop codon (UAA, UAG, or UGA).
What would happen if during translation of a protein the mRNA codon UAA sequence was presented?
If the mRNA codon UAA is encountered during translation, it serves as a stop codon, signaling the ribosome to stop protein synthesis and release the completed protein. This results in the premature termination of translation, leading to a shorter and incomplete protein being produced.
What would happen if the DNA sequence that coded for Cys was mutated in the third position from a U to an A?
This mutation would change the codon from UGU (coding for Cys) to UGA, which is a stop codon. As a result, translation would be terminated prematurely, leading to a truncated protein. This could disrupt the normal function of the protein or render it nonfunctional.
UAG is a stop codon. What might happen if the uracil in this codon was changed to cytosine?
The new codon would code for glutamine. Translation would continue until the ribosome encountered another stop codon or ran out of messenger RNA to translate.ExplanationUAG is an RNA codon. If the uracil (U) in the codon were changed to cytosine (C), the codon would be CAG, which codes for the amino acid glutamine.
What is the stop codon in most molecules of mRNA?
stop codon on mRNA
Describe the difference between a termination signal and a stop codon?
Termination signal is at the end of the part of the chromosome being transcribed during transcription of mRNA. While in a stop codon, also called termination codon, is a nucleotide triplet within messenger RNA that signals a termination of translation.
What would happen if the very last stop codon of a mRNA molecule was mutated into a regular codon?
That isn't exactly a mutation; it's more like degradation. It would basically mean that mRNA, which is made up of multiple codons, will deteriorate into a codon, which is only 3 nucleic acids combined together. Such corrosion would probably result in the cell breaking the codon like how it normally does mRNA, or it will be absorbed into the nucleus to be combined to form a normal mRNA.
What does a codon code for?
A stop codon signals the end of an amino acid chains A STOP codon marks the end of a segment of DNA that is to be transcribed. During transcription, a molecule of messenger RNA (mRNA) is synthesized. The base sequence of this RNA is determined by the base sequence of the template strand of the DNA being transcribed.When the transcription process reaches a STOP codon, that codon is the last to be transcribed. The mRNA therefore ends with a STOP codon. By convention, the gene is considered to be the base sequence on the non-template strand of DNA, and there are three STOP codons: TAA, TGA, TAG. Any one of these marks the end of the gene.The corresponding STOP codons in mRNA are: UAA, UGA, UAG.Mitochondria contain DNA, with 37 genes. In animals, mitochondrial DNA uses TGA (UGA in the mRNA) to code for one of the amino acids, tryptophan, and not as a STOP codon. Plant mitochondria use the "standard" code, with three STOP codons.
If an mRNA is made up of 60 bases how many codons does it contain and how many amino acid does it code for?
A codon is exactly three bases long, so an mRNA strand with 60 bases would contain 20 codons. The first codon will encode for methionine (this is called the "start" codon) and the last codon will be a "stop" codon, which does not encode for an amino acid. Thus, an mRNA strand of 60 bases will code for 19 amino acids. Keep in mind, it is possible for a stop codon to be anywhere on the mRNA strand, and when a stop codon reaches the ribosome, translation must stop. For example, if an mRNA strand contained 30 codons, and the 15th were a stop codon, the mRNA would only code for 14 amino acids and then be done. The other 15 codons would go untranslated.
Is "aug" a stop codon in genetic code?
No, "aug" is not a stop codon in the genetic code. It is actually the start codon that signals the beginning of protein synthesis.
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 the shortest gene?
The shortest gene is theoretically a single codon gene which codes for a single amino acid. This gene would consist of a start codon (AUG) and a stop codon (UAA, UAG, or UGA).
Which process stops when a ribosome reaches a stop codon?
When a ribsome reaches a stop codon, the translation process stops and a protein is released.
