Molecular Biology Questions
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Questions and Answers

Which of the following is relevant for ribosomal attachment of specific sequence in bacteria?

  • CAAT box
  • Shine Dalgarno sequence (correct)
  • Enhancer sequence
  • TATA box
  • Which of the following describes the A form of DNA structures?

  • Left-handed helix with 10 base pairs per turn
  • Right-handed helix with 10 base pairs per turn
  • Left-handed helix with 12 base pairs per turn
  • Right-handed helix with 11 base pairs per turn (correct)
  • DNA gyrase and topoisomerase IV are the targets of anti-bacterial drugs. What are type I and II topoisomerases the target of in humans?

  • Antibiotic agents
  • Anti-tumor agents (correct)
  • Antifungal agents
  • Antiviral agents
  • A nucleosome core plus H1 is known as a:

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

    What protects the ends of linear chromosomal DNA from degradation and gradual shortening?

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

    What is the main target of type I and II topoisomerases in humans?

    <p>anti-tumor agents in humans</p> Signup and view all the answers

    A nucleosome core plus H1 is known as a:

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

    What protects the ends of the linear chromosomal DNA from degradation and gradual shortening?

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

    Which of these structures is the smallest unit of chromatin organization?

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

    Which enzyme is involved in cutting DNA during processes such as DNA repair?

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

    Study Notes

    Ribosomal Attachment in Bacteria

    • The Shine Dalgarno sequence is relevant for ribosomal attachment of specific sequence in bacteria.

    DNA Structure

    • A form of DNA has specific characteristics, including all of the above features.

    Targets of Anti-Bacterial Drugs

    • DNA gyrase and topoisomerase IV are targets of anti-bacterial drugs in bacteria.

    Targets of Anti-Tumor Agents

    • Type I and II topoisomerase are targets of anti-tumor agents in humans.

    Nucleosome Structure

    • A chromatosome is a nucleosome core plus H1.

    Telomeres

    • Telomeres protect the ends of linear chromosomal DNA from degradation and gradual shortening.

    Types of Targets

    • Type I and II are targets of anti-tumor agents in humans.

    Nucleosome Structure

    • A nucleosome core plus H1 is known as a chromatosome.

    Chromosomal DNA Protection

    • The ends of near chromosomal DNA are protected from degradation and gradual shortening by telomeres.
    • Telomeres protect DNA from degradation by endonucleases and exonucleases.

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    Description

    Test your knowledge of molecular biology concepts, including DNA structure, gene expression, and enzymes. Answer questions on DNA gyrase, topoisomerase IV, nucleosomes, and more.

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