Messenger RNA (mRNA) is transcribed from DNA. The mRNA is then translated into protein. http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Transcription.html
The terminator in mRNA synthesis is a specific DNA sequence that signals the end of transcription. When the RNA polymerase reaches the terminator sequence, it stops transcribing the mRNA molecule, releasing it from the DNA template.
Ribosomes move along the mRNA during protein synthesis. They help bring together amino acids to form a peptide strand based on the nucleotide sequence of the mRNA.
The maximum length of a polypeptide encoded by an mRNA is determined by the number of nucleotides in the mRNA sequence. Each amino acid is encoded by a set of three nucleotides called a codon. With a 45-nucleotide mRNA sequence, the maximum length of the polypeptide would be 45/3 = 15 amino acids.
Steps 3 and 4 likely produced different polypeptides due to differences in the nucleotide sequence of the mRNA that was used as the template for protein synthesis. The codons in mRNA determine the sequence of amino acids in the polypeptide chain. Any change in the nucleotide sequence can lead to the incorporation of different amino acids during translation, resulting in a different polypeptide being produced.
Tyrosine. If ATA is the DNA codon, the mRNA transcription would be UAU (since A pairs with U in RNA rather than T). UAU codes for tyrosine.
mRNA contains uracil in its nucleotide sequence, not thymine.
No, mRNA does not contain thymine in its nucleotide sequence. Instead, mRNA contains uracil in place of thymine.
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.
During protein synthesis, a nucleotide sequence in DNA is transcribed into a messenger RNA (mRNA) sequence. This mRNA sequence is then translated into an amino acid sequence by ribosomes. Each set of three nucleotides in the mRNA, called a codon, corresponds to a specific amino acid. This relationship between nucleotide sequences and amino acid sequences is crucial for the accurate assembly of proteins in the cell.
The tRNA molecule carries an anticodon sequence that matches up with the codon sequence on the mRNA during translation. For example, if the mRNA codon is AUG, the tRNA anticodon sequence that lines up with it is UAC. This pairing ensures that the correct amino acid is added to the growing protein chain.
The sequence of amino acids in a protein is determined by the sequence of nucleotides in the mRNA, and this is determined by the sequence of nucleotide bases in the DNA.
The terminator in mRNA synthesis is a specific DNA sequence that signals the end of transcription. When the RNA polymerase reaches the terminator sequence, it stops transcribing the mRNA molecule, releasing it from the DNA template.
During translation, ribosomal RNA (rRNA) helps in the formation of the ribosome structure, transfer RNA (tRNA) brings amino acids to the ribosome based on the codons present on the mRNA, and proteins are synthesized based on the mRNA sequence with the help of ribosomes and tRNA. DNA is not directly involved in translation process; it serves as the template for mRNA synthesis during transcription.
A three-nucleotide sequence in mRNA that specifies a particular amino acid or polypeptide termination signal; basic unit of the genetic code. In translation, an mRNA codon is recognized by its complementary tRNA anti-codon.
The linear sequence of codons on mRNA corresponds to the linear sequence of amino acids in a polypeptide through the process of translation. Each three-nucleotide codon on the mRNA molecule codes for a specific amino acid, and the sequence of codons determines the order in which amino acids are added to the growing polypeptide chain. This relationship is known as the genetic code.
translation
Ribosomes move along the mRNA during protein synthesis. They help bring together amino acids to form a peptide strand based on the nucleotide sequence of the mRNA.