DNA Information to Protein Structures

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Questions and Answers

Which scientist first provided evidence that DNA is the inheritance factor?

  • Phage researchers
  • Erwin Chargaff
  • Frederick Griffith
  • Oswald Avery (correct)

What type of molecule was proven to enter bacterial cells during viral infection?

  • Protein
  • Carbohydrate
  • DNA (correct)
  • RNA

Which scientist investigated the composition of DNA in 1947?

  • Phage researchers
  • Frederick Griffith
  • Erwin Chargaff (correct)
  • Oswald Avery

What type of change does transformation refer to?

<p>A change in genotype and phenotype (B)</p> Signup and view all the answers

Which component of bacteria did Avery find to be crucial for transformation when destroyed?

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

What was known about DNA in 1947?

<p>DNA was known to be a polymer of nucleotides (B)</p> Signup and view all the answers

What is the structure of DNA according to the Watson-Crick model?

<p>Sugar-phosphate backbone with the strands running anti-parallel to each other (C)</p> Signup and view all the answers

What type of model is DNA replication according to the Watson-Crick model?

<p>Semi-conservative (A)</p> Signup and view all the answers

What are the enzymes that carry out the elongation process during DNA replication called?

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

What is the role of the Y-shaped replication forks in the replication bubble?

<p>They are the sites where the new strands are being elongated (C)</p> Signup and view all the answers

What type of primer is used to start the replication process?

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

What is the length of the Okazaki fragments in the lagging strand?

<p>100-200 nucleotides (A)</p> Signup and view all the answers

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