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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.
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∙ 8y ago
Anonymous
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∙ 13y agoDNA polymerase backs up, removes the incorrect nucleotide, and replaces it with the correct one.
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∙ 12y agoJust learned this! the key check points in the cell cycle, the cells won't divide and replicate until dna is ok.
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∙ 9y agoThere are various enzymes and other factors that are able to prevent or recognize errors in DNA replication and repair them. Refer to the related link below.
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∙ 13y agoDNA Polymerases
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∙ 13y agoDNA Polymerases
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How does polymerase prevent mutations?
It checks DNA for errors during replication.
Can Mutations can spontaneously occur during DNA replication?
Yes
Sometimes mutations in DNA can cause control of the cell cycle to fail. What might happen if such a mutation occurred in a person's DNA?
The failure of DNA replication during the cell cycle can cause mutations. If such mutations occurred in a person's DNA, the person can end up getting cancer.
DNA is copied during a process called?
Replication.
Why it is important the DNA replicates exactly?
It is important that the DNA is copied exactly during replication because any errors in replication can cause mutations. For example, even one incorrect base can result in an enzyme becoming inactive. These mutations can be lethal or have severe consequences on the organism's health.
How does polymerase prevent mutations?
It checks DNA for errors during replication.
Can Mutations can spontaneously occur during DNA replication?
Yes
Mutations in DNA often occur during replication During which phase of the cell cycle do such mutations occur?
Interphase
How does DNA semi-conservative replication help prevent mutations in DNA replication?
Semi conservative replication prevents mutations during DNA replication because it produces 2 copies that each contained 1 of the original strands and 1 entirely new strand.
Sometimes mutations in DNA can cause control of the cell cycle to fail. What might happen if such a mutation occurred in a person's DNA?
The failure of DNA replication during the cell cycle can cause mutations. If such mutations occurred in a person's DNA, the person can end up getting cancer.
The substitution of one base for another during DNA replication is an example of what?
Mutations
What are the changes in the genetic code called that can during DNA replication?
Mutation
When in the replication process is DNA most vulnerable to mutations?
during crossing over
Errors that are made during DNA replication may result in what?
Mutations
How does mutations occur during DNA replication and transcription?
RNA polymerase doesn't have a proofreading function.
Which in DNA often occur during replication. During which phase of the cells cycle do such mutations occur?
Interphase
Are mutations in the DNA sequence gene transient changes?
Successful mutations will persist. Mutations usually occur during replication. Some mutations will flourish depending on environmental factors.
