DNA Information for Protein Structures

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Questions and Answers

Who provided the first indication that DNA was the inheritance factor?

  • Erwin Chargaff
  • Griffith
  • Avery (correct)
  • Hershey and Chase

Which component of virulent bacteria was NOT destroyed by Avery?

  • Lipids
  • DNA (correct)
  • Carbohydrates
  • Proteins

What type of viruses infect bacteria and provide evidence that DNA is genetic material?

  • Retroviruses
  • Adenoviruses
  • Phages (correct)
  • Papillomaviruses

Which scientist was NOT involved in determining how the structure of DNA accounts for its role in inheritance?

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

What component of nucleotides was known to be present in DNA in 1947?

<p>All of the above (D)</p> Signup and view all the answers

What is the direction of the strands in the DNA double helix according to the Watson-Crick model?

<p>Anti-parallel (5'-3' and 3'-5') (B)</p> Signup and view all the answers

How many base pairs are there per turn of the double helix in DNA according to the Watson-Crick model?

<p>10 (B)</p> Signup and view all the answers

What is the rate of elongation of new DNA strands in humans during replication?

<p>50 nucleotides per second (D)</p> Signup and view all the answers

What is the enzyme responsible for joining the Okazaki fragments during DNA replication?

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

Which type of nucleotide unit cannot be added to the growing chains during DNA replication?

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

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