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DNA Structure Quiz
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DNA Structure Quiz

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Questions and Answers

What is the main function of genes in DNA?

  • To pair nitrogenous bases
  • To condense DNA into chromosomes
  • To form the structure of DNA
  • To carry genetic information (correct)

    • Why is base pairing crucial for the structure of DNA?

  • To condense DNA into chromatin
  • To maintain the double helical structure (correct)
  • To determine the sugar-phosphate backbone
  • To regulate gene expression

    • Where does the transcription process, converting DNA into mRNA, occur?

  • In the nucleus (correct)
  • In the cytoplasm
  • In the mitochondria
  • In the ribosome

    • Which elements make up a nucleotide in DNA?

    <p>Sugar, phosphate group, nitrogenous base</p> Signup and view all the answers

    What are the nitrogenous bases classified as in DNA?

    <p>Purines and pyrimidines</p> Signup and view all the answers

    What is the purpose of DNA replication?

    <p>To create two identical copies of DNA for cell division</p> Signup and view all the answers

    Which enzyme is responsible for breaking the hydrogen bonds between the bases of DNA during replication?

    <p>Helicase</p> Signup and view all the answers

    What is the directionality of the leading strand during DNA replication?

    <p>5'-3'</p> Signup and view all the answers

    Which molecule contains uracil as one of its nitrogenous bases?

    <p>mRNA</p> Signup and view all the answers

    Who played a significant role in uncovering the double helical structure of DNA?

    <p>Rosalind Franklin</p> Signup and view all the answers

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