Podcast
Questions and Answers
What is the role of DNA ligase in the replication process?
What is the role of DNA ligase in the replication process?
- It elongates the DNA chain by adding nucleotides.
- It corrects errors during DNA replication.
- It introduces nicks to facilitate unwinding of DNA.
- It seals the nicks between Okazaki fragments on the lagging strand. (correct)
Which of the following correctly describes a characteristic shared by DNA polymerases?
Which of the following correctly describes a characteristic shared by DNA polymerases?
- They can carry out mitosis.
- They are ATP-dependent enzymes.
- They exclusively bind to the leading strand.
- They have a proofreading function and can elongate chains. (correct)
What is a function of DNA topoisomerases during DNA replication?
What is a function of DNA topoisomerases during DNA replication?
- They synthesize Okazaki fragments.
- They seal nicks using ATP.
- They unwind supercoiled DNA and introduce nicks. (correct)
- They correct proofreading errors.
During which phase of the cell cycle does DNA replication occur?
During which phase of the cell cycle does DNA replication occur?
What initiates the transition between different phases of the cell cycle?
What initiates the transition between different phases of the cell cycle?
Which protein is primarily responsible for unwinding the DNA during replication?
Which protein is primarily responsible for unwinding the DNA during replication?
What is the role of the RNA primer in DNA synthesis?
What is the role of the RNA primer in DNA synthesis?
In which phase of the cell cycle does DNA replication occur?
In which phase of the cell cycle does DNA replication occur?
What structural formation is described as a 'V' shape where active synthesis occurs?
What structural formation is described as a 'V' shape where active synthesis occurs?
What is the primary function of Single Stranded DNA-binding proteins (SSBs) in DNA replication?
What is the primary function of Single Stranded DNA-binding proteins (SSBs) in DNA replication?
Which component of the replication fork is NOT involved in the actual synthesis of the DNA strand?
Which component of the replication fork is NOT involved in the actual synthesis of the DNA strand?
What defines the origin of replication (ori) in bacterial DNA?
What defines the origin of replication (ori) in bacterial DNA?
Which complex is formed by helicase and primase that aids in the initiation of DNA synthesis?
Which complex is formed by helicase and primase that aids in the initiation of DNA synthesis?
What is the primary role of DNA polymerase I during DNA replication?
What is the primary role of DNA polymerase I during DNA replication?
In which direction does DNA polymerase III synthesize new DNA strands?
In which direction does DNA polymerase III synthesize new DNA strands?
Which strand is synthesized continuously and requires only one RNA primer?
Which strand is synthesized continuously and requires only one RNA primer?
What are Okazaki fragments associated with?
What are Okazaki fragments associated with?
What distinguishes the leading strand from the lagging strand during DNA replication?
What distinguishes the leading strand from the lagging strand during DNA replication?
What role do single-strand binding proteins (SSBPs) play during DNA replication?
What role do single-strand binding proteins (SSBPs) play during DNA replication?
What is the main purpose of topoisomerases in the replication process?
What is the main purpose of topoisomerases in the replication process?
How are newly replicated DNA strands assembled back into chromatin structure?
How are newly replicated DNA strands assembled back into chromatin structure?
Flashcards
Replication
Replication
The process of creating a new DNA molecule from a pre-existing one.
Origin of Replication
Origin of Replication
A specific sequence on a DNA molecule where replication begins.
Replication Fork
Replication Fork
The Y-shaped structure that forms during DNA replication where the DNA strands separate.
DNA Helicase
DNA Helicase
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Primase
Primase
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RNA Primer
RNA Primer
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DNA Polymerase
DNA Polymerase
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Bidirectional Replication
Bidirectional Replication
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DNA Ligase Function
DNA Ligase Function
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DNA Polymerase Function
DNA Polymerase Function
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DNA Replication Phase
DNA Replication Phase
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Cell Cycle Phases
Cell Cycle Phases
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Swivels in DNA
Swivels in DNA
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DNA Replication Polarities
DNA Replication Polarities
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Leading Strand Synthesis
Leading Strand Synthesis
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Lagging Strand Synthesis
Lagging Strand Synthesis
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Okazaki Fragments
Okazaki Fragments
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RNA Primer Removal
RNA Primer Removal
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DNA Polymerase III
DNA Polymerase III
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Semi-discontinuous Replication
Semi-discontinuous Replication
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Role of DNA Polymerase I
Role of DNA Polymerase I
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