Molecular Biology: Nucleic Acids Structure [BIO 206]
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are the small, circular, extrachromosomal DNA molecules found in most species of bacteria called?

  • Plasmids (correct)
  • Single-stranded DNA molecules
  • Linear DNA molecules
  • Mitochondrial DNA
  • What percentage of the total cellular DNA does mitochondrial DNA (mtDNA) form?

  • 2 to 5%
  • 0.1 to 0.5%
  • 0.3 to 1% (correct)
  • 1 to 2%
  • How many base pairs (bp) does human mtDNA contain?

  • 5,000 bp
  • 15,000 bp
  • 10,000 bp
  • 16,569 bp (correct)
  • What is the main function of the proteins encoded by mitochondrial DNA?

    <p>Oxidative phosphorylation</p> Signup and view all the answers

    How is mitochondrial DNA (mtDNA) inherited?

    <p>Maternally inherited</p> Signup and view all the answers

    What is the process called when the two strands of DNA separate due to heating?

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

    What is the name of the temperature that produces a loss of 50% of the DNA helical form?

    <p>Melting point</p> Signup and view all the answers

    Which of the following factors decreases the DNA melting temperature (Tm)?

    <p>More alkaline medium</p> Signup and view all the answers

    Which type of viruses have single-stranded DNA molecules?

    <p>Only a few viruses</p> Signup and view all the answers

    What happens to the absorption of UV light and the viscosity of DNA during the denaturation process?

    <p>Absorption of UV light increases, and viscosity decreases</p> Signup and view all the answers

    More Like This

    DNA and RNA Structure and Function
    138 questions
    biochemistry midterms
    506 questions

    biochemistry midterms

    WellManneredRadium4817 avatar
    WellManneredRadium4817
    Use Quizgecko on...
    Browser
    Browser