DNA Replication Process Overview
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Questions and Answers

What is the role of the DnaA protein in DNA replication?

  • Causing DNA to stretch and separating the strands (correct)
  • Loading the DnaB helicase onto the unwound DNA
  • Binding to the single-stranded regions to prevent rejoining of the strands
  • Breaking the hydrogen bonds between nitrogenous base pairs

What is the function of the DnaB helicase in DNA replication?

  • Forming a prepriming complex with the DnaA protein
  • Binding single-stranded DNA-binding proteins (SSBP)
  • Continuing the unwinding of DNA by breaking hydrogen bonds (correct)
  • Preventing the strands from rejoining

What is the function of single-strand DNA-binding protein (SSBP) in DNA replication?

  • Loading the DnaB helicase onto the unwound DNA
  • Breaking the hydrogen bonds between nitrogenous base pairs
  • Forming a prepriming complex with DnaA protein
  • Preventing rejoining of the DNA strands (correct)

What are replication forks in DNA replication?

<p>Junctions between double-stranded and unwound single-stranded DNA (A)</p> Signup and view all the answers

What is the function of the DnaB helicase in DNA replication?

<p>Continuing the unwinding of DNA by breaking hydrogen bonds (D)</p> Signup and view all the answers

What is the role of single-strand DNA-binding protein (SSBP) in DNA replication?

<p>Binding to single-stranded regions to prevent strands from rejoining (A)</p> Signup and view all the answers

What happens as more DnaA proteins bind to the unwound DNA?

<p>DnaA proteins are released from the DNA (A)</p> Signup and view all the answers

What defines a replication bubble in DNA replication?

<p>Region where DNA appears like a bubble (D)</p> Signup and view all the answers

What is the primary function of DnaC helicase loader proteins?

<p>Helping load DnaB helicase onto unwound DNA (C)</p> Signup and view all the answers

How many replication forks are formed at the origin of replication?

<p>Two (A)</p> Signup and view all the answers

What is the significance of the replication forks in DNA replication?

<p>They move in opposite directions (C)</p> Signup and view all the answers

Where do DnaA proteins and DnaB-DnaC complex bind during DNA replication?

<p>At the origin of replication (C)</p> Signup and view all the answers

What prevents the DNA strands from rejoining during replication?

<p>Single-strand DNA-binding protein (SSBP) (C)</p> Signup and view all the answers

Which protein is responsible for continuing the unwinding of DNA by breaking hydrogen bonds?

<p>DnaB helicase (B)</p> Signup and view all the answers

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