Unravel the Mystery of DNA Replication
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Questions and Answers

What is the process called when each strand of DNA serves as a template for the replication of a new complementary strand?

  • Dispersive replication
  • Conservative replication
  • Semiconservative replication (correct)
  • Asymmetric replication

Which strand of the parent double helix is conserved in each new DNA molecule during replication?

  • The leading strand is conserved
  • Neither strand is conserved
  • Both strands are conserved
  • One strand is conserved (correct)

What is the site called where DNA replication begins in prokaryotes?

  • Origin of transformation
  • Origin of replication (correct)
  • Origin of translation
  • Origin of transcription

What is the length of the ori site in prokaryotes?

<p>245 bp (C)</p> Signup and view all the answers

What is the main reason why the ori site in prokaryotes contains A/T-rich sequences?

<p>To make it easier to break the hydrogen bonds between base pairs (C)</p> Signup and view all the answers

What protein binds onto the Ori site in prokaryotes during DNA replication?

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

What does the DnaA protein do during DNA replication in prokaryotes?

<p>It synthesizes new DNA strands (A)</p> Signup and view all the answers

How many replication forks are created during DNA replication in prokaryotes?

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

What is the shape of the replication fork during DNA replication in prokaryotes?

<p>Y-shaped (A)</p> Signup and view all the answers

What is the direction of replication during DNA replication in prokaryotes?

<p>Bidirectional (D)</p> Signup and view all the answers

Which regions of DNA are relatively weaker to break during DNA replication in prokaryotes?

<p>A/T-rich regions (D)</p> Signup and view all the answers

What is the role of the DnaB protein during DNA replication in prokaryotes?

<p>It unwinds the double helix (B)</p> Signup and view all the answers

What is the process called when each strand of DNA serves as a template for the replication of a new complementary strand?

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

Which strand of the parent double helix is conserved in each new DNA molecule during replication?

<p>One strand is conserved (C)</p> Signup and view all the answers

What is the site called where DNA replication begins in prokaryotes?

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

What is the length of the ori site in prokaryotes?

<p>245 bp (B)</p> Signup and view all the answers

What is the main reason why the ori site in prokaryotes contains A/T-rich sequences?

<p>To make it easier to break the hydrogen bonds between base pairs (C)</p> Signup and view all the answers

What protein binds onto the Ori site in prokaryotes during DNA replication?

<p>DnaA (C)</p> Signup and view all the answers

What does the DnaA protein do during DNA replication in prokaryotes?

<p>It synthesizes new DNA strands (D)</p> Signup and view all the answers

How many replication forks are created during DNA replication in prokaryotes?

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

What is the shape of the replication fork during DNA replication in prokaryotes?

<p>Y-shaped (D)</p> Signup and view all the answers

What is the direction of replication during DNA replication in prokaryotes?

<p>Bidirectional (C)</p> Signup and view all the answers

Which regions of DNA are relatively weaker to break during DNA replication in prokaryotes?

<p>A/T-rich regions (A)</p> Signup and view all the answers

What is the role of the DnaB protein during DNA replication in prokaryotes?

<p>It unwinds the double helix (C)</p> Signup and view all the answers

Which of the following statements is true about DNA replication?

<p>Only one strand of the parent double helix is conserved in each new DNA molecule. (B)</p> Signup and view all the answers

What is the function of the ori site in prokaryotic DNA replication?

<p>To provide a site for the binding of the replication machinery. (D)</p> Signup and view all the answers

Why is the ori site mostly composed of A/T-rich sequences?

<p>Because A/T-rich sequences are more easily broken than G/C-rich sequences. (A)</p> Signup and view all the answers

What is the role of DnaA protein in DNA replication?

<p>To bind onto the ori site and stretch the double strand DNA each other. (C)</p> Signup and view all the answers

What is the structure created by the binding of DnaA protein to the ori site?

<p>A replication bubble. (C)</p> Signup and view all the answers

How many replication forks are created during DNA replication in prokaryotes?

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

What is the direction of replication in prokaryotes?

<p>Bidirectional. (C)</p> Signup and view all the answers

What is the role of RNA primers in DNA replication?

<p>To provide a 3'-OH group for DNA polymerase to add nucleotides. (D)</p> Signup and view all the answers

What is the function of DNA polymerase III in DNA replication?

<p>To synthesize new DNA strands. (A)</p> Signup and view all the answers

What is the function of DNA gyrase in DNA replication?

<p>To relieve the tension caused by the unwinding of the double helix. (C)</p> Signup and view all the answers

What is the role of DNA ligase in DNA replication?

<p>To join the Okazaki fragments on the lagging strand. (C)</p> Signup and view all the answers

What is the difference between the leading and lagging strands in DNA replication?

<p>The leading strand is synthesized continuously, while the lagging strand is synthesized in short fragments. (A)</p> Signup and view all the answers

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