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How does RNA polymerase know where to start transcribing a gene into mRNA?
The enzyme that synthesizes RNA (RNA polymerase) binds specific DNA sequencesthat typically lie before the gene being transcribed. When everything it needs to start synthesis is properly assembled (any cofactors, etc.), only then can it begin transcribing DNA into RNA.
What is a DNA terminator sequence?
A DNA terminator sequence is a specific nucleotide sequence that signals the end of transcription for RNA polymerase, thus stopping the synthesis of RNA from DNA. It usually contains a stem-loop structure that causes RNA polymerase to dissociate from the DNA template.
What are the major steps of mRNA transcription?
mRNA is produced based on the DNA code. If the original (correct) sequence is AGC, then the correct mRNA sequence should be UCG.However, the mutated DNA sequence (ATC) now codes for the mRNA sequence UAG. So, the incorrect DNA sequence is spread through to create an incorrect mRNA sequence.
At the end of DNA what are the three codons called?
The three codons at the end of a DNA sequence are known as stop codons. They signal the termination of protein synthesis during translation.
What is the significance of the DNA 5' end in genetic sequencing and analysis?
The DNA 5' end is important in genetic sequencing and analysis because it indicates the starting point of a DNA strand. Understanding the sequence at the 5' end helps researchers accurately read and interpret the genetic information encoded in the DNA molecule.
If the sticky end of a nucleotide sequence is TTAA what is next?
If the sticky end of a sequence is TTAA, it can bind to a DNA molecule with the sequence AATT
List the two nucleotide sequence that are complementary to the sticky end sequence on the human DNA?
The complementary nucleotide sequence to a sticky end sequence on human DNA would be its reverse complement sequence. For example, if the sticky end sequence is "AATT", its complementary sequence would be "TTAA".
How does RNA polymerase know where to start transcribing a gene into mRNA?
The enzyme that synthesizes RNA (RNA polymerase) binds specific DNA sequencesthat typically lie before the gene being transcribed. When everything it needs to start synthesis is properly assembled (any cofactors, etc.), only then can it begin transcribing DNA into RNA.
What is the order of actions by rna polymerase?
Binds to DNA, makes mRNA from DNA, detaches
What is a DNA terminator sequence?
A DNA terminator sequence is a specific nucleotide sequence that signals the end of transcription for RNA polymerase, thus stopping the synthesis of RNA from DNA. It usually contains a stem-loop structure that causes RNA polymerase to dissociate from the DNA template.
How does Transcription take place?
who? the transcription enzyme RNA polymerase, the promoter DNA and the terminator DNAwhere? in the cell nucleusInitiation The promoter, located in the DNA at the beginning of the gene becomes the binding site for the RNA polymerase. Elongation the RNA polymerase copies and peels away the copied DNA, after copied, the DNA joins back with its matching DNA strand while the newly made RNA leave the polymerase Termination the RNA polymerase reaches a special sequence of bases in the DNA template that signals the end of the gene. The polymerase enzyme detaches from the RNA molecule and the gene who? the transcription enzyme RNA polymerase, the promoter DNA and the terminator DNAwhere? in the cell nucleusInitiation The promoter, located in the DNA at the beginning of the gene becomes the binding site for the RNA polymerase. Elongation the RNA polymerase copies and peels away the copied DNA, after copied, the DNA joins back with its matching DNA strand while the newly made RNA leave the polymerase Termination the RNA polymerase reaches a special sequence of bases in the DNA template that signals the end of the gene. The polymerase enzyme detaches from the RNA molecule and the gene
What are the major steps of mRNA transcription?
mRNA is produced based on the DNA code. If the original (correct) sequence is AGC, then the correct mRNA sequence should be UCG.However, the mutated DNA sequence (ATC) now codes for the mRNA sequence UAG. So, the incorrect DNA sequence is spread through to create an incorrect mRNA sequence.
What determines where on the DNA molecule transcription begins and ends?
Transcription begins at a specific DNA sequence called the promoter region, which signals the RNA polymerase enzyme where to start transcribing. Transcription ends at a specific DNA sequence called the terminator region, which signals the RNA polymerase to stop transcribing. These regions, along with other regulatory elements, help determine the initiation and termination points of transcription.
What is the terminator in mRNA synthesis?
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.
Which number should come at the end of the series 1 4 9 16?
The next number is 25 but there are the sequence is infinite so there can be no end to the sequence.
What is the sequence of events that occurs from the end of one division to the end of the next division?
cell cycle
Does transcription begin at a promoter region and continue until RNA polymerase reaches a stop codon?
Transcription begins at a promoter region on the DNA where RNA polymerase binds to initiate the process. It continues along the DNA template strand until it reaches a termination signal, not a stop codon, which signals the end of transcription.
