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Enzymes involved in template directed synthesis of DNA from deoxyribonucleotide E. Coli, III appears to be most important in genome replication and I is important for its ability to edit out unpaired bases at the endstrands. Animal cells have and polymerases, with apparently responsible for replication of nuclear DNA and for replication of mitochondrial. All these function with a DNA strand as template. Retroviruses possess a unique DNA polymerase (reverse transcriptase) that uses an RNA template. triphosphates. I, II and III are known in of growing *
Yes.
DNA polymerases, like most enzymes, are proteins, and the code for their primary structure (their amino acid sequences) is included in the genome.
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Yes, DNA does code for DNA polymerase.
Every protein made by the cell (as far is known) must be coded for somewhere in the DNA. This includes proteins that fix, replicate, wind, unwind, and control gene expression of DNA. Therefore DNA holds the information needed for every protein that works with DNA and the cell.
What else can I help you with?
Why does DNA polymerase require a primer for initiating the synthesis of new DNA strands?
DNA polymerase requires a primer to initiate the synthesis of new DNA strands because it can only add nucleotides onto an existing strand of DNA. The primer provides a starting point for the polymerase to begin adding nucleotides and building the new DNA strand.
What specific component does DNA polymerase III require in order to function correctly?
DNA polymerase III requires a primer, which is a short piece of RNA or DNA, in order to function correctly.
What enzyme Cuts out the RNA primer on the replicated DNA molecule and replaces it with the appropriate DNA nucleotides?
The enzyme that cuts out the RNA primer on the replicated DNA molecule and replaces it with the appropriate DNA nucleotides is DNA polymerase I in prokaryotes and DNA polymerase delta in eukaryotes. This process, known as primer removal or primer excision, is essential for completing DNA replication accurately.
Which of the following enzymes creates a primer for DNA polymerase?
DNA primase is the enzyme that creates the RNA primer needed for DNA polymerase to initiate DNA synthesis.
Why doesn't RNA polymerase require a primer for transcription?
RNA polymerase does not require a primer for transcription because it can initiate the process on its own by recognizing specific DNA sequences called promoters. This allows RNA polymerase to bind to the DNA and start synthesizing RNA without the need for a primer like DNA polymerase does during DNA replication.
Why does DNA polymerase require a primer for initiating the synthesis of new DNA strands?
DNA polymerase requires a primer to initiate the synthesis of new DNA strands because it can only add nucleotides onto an existing strand of DNA. The primer provides a starting point for the polymerase to begin adding nucleotides and building the new DNA strand.
What specific component does DNA polymerase III require in order to function correctly?
DNA polymerase III requires a primer, which is a short piece of RNA or DNA, in order to function correctly.
What enzyme Cuts out the RNA primer on the replicated DNA molecule and replaces it with the appropriate DNA nucleotides?
The enzyme that cuts out the RNA primer on the replicated DNA molecule and replaces it with the appropriate DNA nucleotides is DNA polymerase I in prokaryotes and DNA polymerase delta in eukaryotes. This process, known as primer removal or primer excision, is essential for completing DNA replication accurately.
Which of the following enzymes creates a primer for DNA polymerase?
DNA primase is the enzyme that creates the RNA primer needed for DNA polymerase to initiate DNA synthesis.
What does the first nucleotide attach to because DNA polymerase can only add nucleotides to a pre-existing strand?
A primer molecule is required for DNA polymerase to initiate the addition of nucleotides. This primer provides a starting point for DNA polymerase to begin adding nucleotides in the correct sequence. Once the primer is in place, DNA polymerase can add nucleotides complementary to the template strand.
Why doesn't RNA polymerase require a primer for transcription?
RNA polymerase does not require a primer for transcription because it can initiate the process on its own by recognizing specific DNA sequences called promoters. This allows RNA polymerase to bind to the DNA and start synthesizing RNA without the need for a primer like DNA polymerase does during DNA replication.
Does initiation of transcription require a primer?
No, initiation of transcription does not require a primer. Transcription begins at the promoter region of a gene, where RNA polymerase binds and starts synthesizing a complementary RNA strand using the template DNA strand. In contrast, DNA replication requires a primer to initiate synthesis.
In polymerase chain reaction how many kinds of primer are used?
In polymerase chain reaction (PCR), two types of primers are used: a forward primer and a reverse primer. These short DNA sequences are specific to the target DNA region to be amplified and serve as starting points for DNA synthesis by the DNA polymerase enzyme.
For DNA polymerase to link nucleotides together as new strands of DNA the first nucleotide must be attached to what because DNA polymerase can only add nucleotides to a pre exsisting strand?
The first nucleotide must be attached to a short RNA primer to provide a free 3' hydroxyl group for DNA polymerase to extend from. DNA polymerase starts adding nucleotides to this RNA primer to begin DNA replication.
For DNA polymerase to link nucleotide together as new strands of DNA the first nucleotide must be attached to a because DNA polymerase can only add nucleotides to a pre-existing strand?
For DNA polymerase to link nucleotides together, the first nucleotide must be attached to a primer, which is a short segment of RNA or DNA that provides a free 3' hydroxyl group for the DNA polymerase to start adding nucleotides. DNA polymerase can only extend nucleotides from an existing primer or strand, using it as a template for complementary base pairing.
Why rna primer is used instead of dna primer?
There are basically two types of enzymes that can bind to DNA and copy it. The DNA polymerase and the RNA polymerase. The RNA polymerase, which copies DNA into RNA, will only bind to single stranded DNA, in other words areas of the DNA where the nitrogen bases holding the two strands of nucleotide units together have been separated. On the other hand the DNA polymerase that copies DNA into DNA will only bind to DNA that is double stranded. So in lies the dilemma. To make a copy of the DNA the DNA polymerase is use, but it will not bind to single stranded DNA so there is no way to make a DNA primer using aDNA polymerase, but the RNA polymerase will bind to single stranded DNA and there for can be used to make a small RNA primer on the open strands of DNA. Now the DNA polymerase has place that is double stranded and can attach and start copying the DNA.
Why RNA primers are needed during DNA replication and what is their fate?
DNA polymerase cannot begin the synthesis of new DNA.To synthesis a new strand of DNA ,RNA primer is required.The complementary RNA nucleotides,that are added opposite to the single strand of parent DNA are the RNA primer.
