The type of mutation that stops the translation of a protein is a nonsense mutation. This occurs when a base substitution (point mutation) results in a STOP codon and thus stops translation of the sequence into a protein.
DNA mutation can lead to changes in the mRNA sequence due to alterations in the base pairs of the DNA that are transcribed into mRNA. These changes can result in the production of a faulty mRNA molecule, which can affect the translation process and ultimately lead to the production of abnormal or dysfunctional proteins.
Translation is the process of decoding an mRNA message into a polypeptide chain and ultimately a protein. During translation, the ribosome reads the mRNA codons and matches them to the corresponding amino acids to assemble the protein chain.
The production of proteins is called protein synthesis. This is further divided into transcription, which creates mRNA from template DNA, and translation, which uses the code of mRNA to make polypeptides.
Translation
The cap and tail on eukaryotic mRNA play important roles in mRNA stability and translation. The 5' cap protects the mRNA from degradation and helps in the initiation of translation. The poly(A) tail at the 3' end of mRNA also plays a role in mRNA stability and regulation of translation.
When a ribsome reaches a stop codon, the translation process stops and a protein is released.
DNA mutation can lead to changes in the mRNA sequence due to alterations in the base pairs of the DNA that are transcribed into mRNA. These changes can result in the production of a faulty mRNA molecule, which can affect the translation process and ultimately lead to the production of abnormal or dysfunctional proteins.
Mutations not only change the DNA, but a change to the DNA will change the mRNA. This explains why a mutation in one generation can be passed on to the next generation.
Translation of mRNA into a protein occurs in the ribosomes.
Translation is the process of decoding an mRNA message into a polypeptide chain and ultimately a protein. During translation, the ribosome reads the mRNA codons and matches them to the corresponding amino acids to assemble the protein chain.
Translation
The production of proteins is called protein synthesis. This is further divided into transcription, which creates mRNA from template DNA, and translation, which uses the code of mRNA to make polypeptides.
The cap and tail on eukaryotic mRNA play important roles in mRNA stability and translation. The 5' cap protects the mRNA from degradation and helps in the initiation of translation. The poly(A) tail at the 3' end of mRNA also plays a role in mRNA stability and regulation of translation.
A mutation in a DNA nucleotide sequence would be more harmful than a mutation in a mRNA nucleotide sequence because it could cause the synthesis of multiple nonfunctional proteins in comparison to a mutation in a mRNA nucleotide sequence that would be less harmful because it would result in a few nonfunctional proteins.
No, transcription involves the formation of mRNA.
UAA, UAG, and UGA are stop codons that signal the end of protein synthesis. When they are reached on the mRNA, translation stops, and the completed protein is released from the ribosome.
The termination codon on the mRNA strand stops translation by signaling the ribosome to release the polypeptide chain. This termination codon does not code for any amino acid and instead signals the end of protein synthesis.