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What is the difference between primer and promotor in cell biology?
In cell biology, a primer is a short piece of RNA or DNA that is required for initiating DNA replication, while a promoter is a region of DNA that initiates the transcription of a particular gene. Primers are needed for DNA replication, while promoters are needed for gene transcription.
Which explains how a probe can find a single-standard target DNA gene?
The probe is the second strand of DNA that forms double-stranded DNA with the target gene.
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.
What describes the structure formed wjen a probe hybridizes to a gene?
A double-stranded DNA structure in which one strand is the probe.
What does the synthesis of a new strand of DNA begin?
Following the initiation of DNA replication, the first step is the synthesis of a short RNA primer.
What is the difference between primer and promotor in cell biology?
In cell biology, a primer is a short piece of RNA or DNA that is required for initiating DNA replication, while a promoter is a region of DNA that initiates the transcription of a particular gene. Primers are needed for DNA replication, while promoters are needed for gene transcription.
What is the difference between a forward and reverse primer in PCR amplification?
In PCR amplification, a forward primer is designed to bind to the template DNA strand in the forward direction, while a reverse primer is designed to bind to the template DNA strand in the reverse direction. These primers help initiate the amplification process by marking the specific region of DNA to be copied.
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.
Which explains how a probe can find a single-standard target DNA gene?
The probe is the second strand of DNA that forms double-stranded DNA with the target gene.
Difference between the DNA and RNA?
the difference is that DNA is a double helix and RNA is a single chain
What property of DNA makes hybridization between a labeled probe and a target gene possible?
The complementary base pairing between DNA strands enables hybridization between a labeled probe and a target gene. The hydrogen bonding between adenine-thymine and guanine-cytosine base pairs allows the probe to specifically bind to its complementary sequence in the target gene, facilitating detection.
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.
What does a primer do in PCR and how does it contribute to the amplification of DNA fragments?
A primer in PCR is a short piece of DNA that binds to a specific target sequence on the DNA template. It serves as a starting point for DNA synthesis by the DNA polymerase enzyme. The primer helps the enzyme to accurately copy the target DNA sequence, leading to the amplification of the DNA fragment during PCR.
What primer is needed at the origin of nucleotide addition?
A primer made of RNA is required at the origin of nucleotide addition for DNA replication. This primer provides a free 3' OH group for DNA polymerase to start adding nucleotides and serves as a starting point for DNA synthesis.
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 are the key steps involved in performing a successful one primer PCR reaction?
The key steps in performing a successful one primer PCR reaction include: preparing the reaction mix with the primer, template DNA, nucleotides, and polymerase; denaturing the DNA at a high temperature; annealing the primer to the template DNA at a lower temperature; and extending the primer to create new DNA strands. The reaction is then cycled through these steps multiple times to amplify the target DNA.
