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It checks DNA for errors during replication.
Vada Boyer
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∙ 7y agoit checks for DNA errors during mutations
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How mutations are corrected?
DNA Polymerase carries out mismatch repair, or proofreading, and corrects any errors.
How would RNA polymerase be affected if the repressor protein were not bound to the proper site on a gene?
it will prevent the transcription of rNA polymerase
Which best describes the purpose of the polymerase chain reaction (PCR)?
Polymerase Chain Reaction is widely used in many areas to identify DNA and detect infectious organisms or genetic variations, including the viruses that cause AIDS, hepatitis, and tuberculosis, detection of mutations in human genes, and numerous other tasks.
How does dense packing of DNA in chromosome prevent gene expression?
If the gene is obscured and hidden by folds or heavily methylated, RNA polymerase has a difficult time getting to the promoter region to initiate transcription. If the polymerase can't get there, then the gene is not transcribed and translated to a protein.
How are mutations prevented during DNA replication?
DNA polymerase checks DNA for errors.DNA polymerase checks DNA for errors by breaking the hydrogen bonds between the paired nitrogen bases in the DNA molecule. This causes the molecule to separate into two individual strands.
What cell cause mutations?
DNA polymerase
How does mutations occur during DNA replication and transcription?
RNA polymerase doesn't have a proofreading function.
How mutations are corrected?
DNA Polymerase carries out mismatch repair, or proofreading, and corrects any errors.
How would RNA polymerase be affected if the repressor protein were not bound to the proper site on a gene?
it will prevent the transcription of rNA polymerase
what helps prevent errors in DNA replication?
DNA polymerase checks the DNA for errors.
What is the difference between the helicase enzyme and DNA polymerase enzyme?
Helicase splits the 3' and 5' Okazaki fragments, while the DNA polymerase attaches the "new" 3' nucleotide, with the "old" 5' nucleotide. As well as proofreading, or making sure that the bases are complementary in order to avoid mutations.
Which best describes the purpose of the polymerase chain reaction (PCR)?
Polymerase Chain Reaction is widely used in many areas to identify DNA and detect infectious organisms or genetic variations, including the viruses that cause AIDS, hepatitis, and tuberculosis, detection of mutations in human genes, and numerous other tasks.
What does the medical abbreviation PCR mean?
PCR stands for "polymerase chain reaction," which is a molecular biology technique used to amplify and detect specific DNA sequences. It is commonly used in medical diagnostics and research to detect viruses, bacteria, and genetic mutations.
How does dense packing of DNA in chromosome prevent gene expression?
If the gene is obscured and hidden by folds or heavily methylated, RNA polymerase has a difficult time getting to the promoter region to initiate transcription. If the polymerase can't get there, then the gene is not transcribed and translated to a protein.
Is the enzyme that allows replication to occur DNA polymerase or RNA polymerase?
DNA polymerase replicated DNA. RNA polymerase creates mRNA to be used in protein synthesis. RNA polymerase does not replicated DNA.
What is the source of the polymerase used in polymerase chain reaction?
Taq polymerase, the enzyme used frequently in Polymerase Chain Reaction, is extracted from Thermophilus aquaticus, a thermophilic bacteria.
How does the repressors protein prevent transcription?
By attaching to the a region of the gene called operator thus blocking RNA polymerase so that the gene is not transcribed.
