Color-coded ddNTPs

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Questions and Answers

What is the purpose of attaching unique color dyes to ddNTPs?

  • To mark the 5' end of each fragment
  • To label and identify the terminated fragments (correct)
  • To sequence the fragments
  • To produce single-stranded cDNA fragments

Which color dye is used to label ddATP?

  • Blue
  • Green (correct)
  • Black
  • Red

What is the color dye used to label ddGTP?

  • Red
  • Black (correct)
  • Green
  • Blue

What is the color dye used to label ddTTP?

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

What is the color dye used to label ddCTP?

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

What is the purpose of gel/capillary electrophoresis in DNA sequencing?

<p>To separate the fragments by size (C)</p> Signup and view all the answers

What is the 3' end of a cDNA fragment?

<p>The end with the unique color dye attached (B)</p> Signup and view all the answers

What is the purpose of producing single-stranded cDNA fragments in DNA sequencing?

<p>To amplify the DNA sample (C)</p> Signup and view all the answers

What information does the order in which the fragments separate during electrophoresis give?

<p>The nucleotide sequence of each fragment (B)</p> Signup and view all the answers

What is the purpose of ddNTPs in DNA sequencing?

<p>To label and identify the terminated fragments (A)</p> Signup and view all the answers

What is the difference between ddNTPs and regular dNTPs?

<p>ddNTPs have a hydroxyl group on the 3' carbon, while regular dNTPs have a phosphate group on the 3' carbon (D)</p> Signup and view all the answers

What is the purpose of marking the 3' end of each fragment with a dye in DNA sequencing?

<p>To label and identify the terminated fragments (D)</p> Signup and view all the answers

What is the purpose of attaching unique color dyes to ddNTPs?

<p>To label and identify the terminated fragments (A)</p> Signup and view all the answers

Which color dye is used to label ddATP?

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

What is the color dye used to label ddGTP?

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

What is the color dye used to label ddTTP?

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

What is the color dye used to label ddCTP?

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

What is the purpose of gel/capillary electrophoresis in DNA sequencing?

<p>To separate the fragments by size (D)</p> Signup and view all the answers

What is the 3' end of a cDNA fragment?

<p>The end opposite to the unique color dye attached (B)</p> Signup and view all the answers

What is the purpose of producing single-stranded cDNA fragments in DNA sequencing?

<p>To amplify the DNA sample (D)</p> Signup and view all the answers

What information does the order in which the fragments separate during electrophoresis give?

<p>The nucleotide sequence of each fragment (B)</p> Signup and view all the answers

What is the purpose of ddNTPs in DNA sequencing?

<p>To label and identify the terminated fragments (A)</p> Signup and view all the answers

What is the difference between ddNTPs and regular dNTPs?

<p>ddNTPs have a hydroxyl group on the 3' carbon, while regular dNTPs have a phosphate group on the 3' carbon (D)</p> Signup and view all the answers

What is the purpose of marking the 3' end of each fragment with a dye in DNA sequencing?

<p>To label and identify the terminated fragments (D)</p> Signup and view all the answers

What is the purpose of attaching unique color dyes to ddNTPs?

<p>To label and identify the terminated fragments (D)</p> Signup and view all the answers

Which color dye is used to label ddATP?

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

What is the significance of marking the 3’ end of each cDNA fragment with a dye?

<p>To obtain the sequence (C)</p> Signup and view all the answers

How are the DNA fragments separated in a DNA sequencing reaction?

<p>Gel electrophoresis or capillary electrophoresis (D)</p> Signup and view all the answers

What is the order in which the fragments separate during electrophoresis used for?

<p>To obtain the sequence (A)</p> Signup and view all the answers

Which type of DNA fragments are produced in a DNA sequencing reaction?

<p>Single-stranded cDNA fragments (A)</p> Signup and view all the answers

What is the purpose of ddCTP in a DNA sequencing reaction?

<p>To label and identify the undamaged fragments (C)</p> Signup and view all the answers

Which color dye is used to label ddTTP?

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

What is the purpose of gel electrophoresis in a DNA sequencing reaction?

<p>To separate the DNA fragments by size (D)</p> Signup and view all the answers

Which end of the cDNA fragment is marked with a dye in a DNA sequencing reaction?

<p>3' end (B)</p> Signup and view all the answers

What is the purpose of ddGTP in a DNA sequencing reaction?

<p>To label and identify the terminated fragments (A)</p> Signup and view all the answers

Which color dye is used to label ddGTP?

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

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