Primer Design Using Primer3 Software

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Questions and Answers

What is the optimal amplicon size for the product size range?

  • ~120 bp (correct)
  • 70-200 bp, 80-150 bp
  • 70-200 bp
  • 80-150 bp

What is the acceptable range for primer size according to the text?

  • 15-25 bp
  • 16-24 bp
  • 18-28 bp (correct)
  • 20-30 bp

What is the optimal primer Tm (melting temperature) value mentioned in the text?

  • 60°C (correct)
  • 63°C
  • 59°C
  • 57°C

What is the maximum allowable Tm difference between the forward and reverse primers according to the text?

<p>3°C (C)</p> Signup and view all the answers

What is the optimal GC% (guanine-cytosine content) range for primers mentioned in the text?

<p>50-60% (D)</p> Signup and view all the answers

What is the recommended setting for 'Max 3' Self complementarity'?

<p>0 (D)</p> Signup and view all the answers

What is the primary purpose of the Primer3 software?

<p>To design primers for PCR amplification (B)</p> Signup and view all the answers

Which database is mentioned in the text for retrieving rat gene sequences?

<p>Rat Genome Database (RGD) (B)</p> Signup and view all the answers

What is the recommended approach for providing the target sequence to Primer3?

<p>Save the sequence as a text file and upload it to Primer3 (A)</p> Signup and view all the answers

Which species are supported by the Rat Genome Database (RGD) according to the text?

<p>Rat, Mouse, Human, and Chinchilla (D)</p> Signup and view all the answers

What is the purpose of copying the nucleotide sequence from the Rat Genome Database to the NCBI GenBank?

<p>To obtain additional annotations and features (C)</p> Signup and view all the answers

Which of the following steps is not mentioned in the text for primer design using Primer3?

<p>Adjusting parameters for primer design in the Primer3 interface (D)</p> Signup and view all the answers

What should be avoided in the 3' end of a primer to prevent primer-dimer formation?

<p>Repeated runs of 3 or more Cs or Gs (B)</p> Signup and view all the answers

Why is it mentioned to increase the primer setting by 1 if no primers are returned?

<p>To get primers (B)</p> Signup and view all the answers

Which action should be taken after selecting the primers for testing?

<p>Running BLAST and checking for Query coverage (A)</p> Signup and view all the answers

What could promoting mispriming at C or C-rich sequences potentially result in?

<p>Primer-dimer formation (A)</p> Signup and view all the answers

Why is it important to check the E-value after running BLAST on the primers?

<p>To assess the accuracy of the primer sequence alignment (A)</p> Signup and view all the answers

What should be done if there are no results after setting the value to 1 during primer selection?

<p>Increase the value by an increment of 1 (B)</p> Signup and view all the answers

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