Genes and Proteins: The Central Dogma
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Questions and Answers

What is the primary reason why the genetic code is considered degenerate?

  • Multiple codons can code for the same amino acid (correct)
  • The code is not universal across all organisms
  • There are more amino acids than nucleotides
  • The sequence of nucleotides is not unique

    • What is the significance of all organisms sharing the same genetic code?

  • It suggests that life evolved from a common ancestral organism (correct)
  • It provides evidence for the diversification of life on Earth
  • It is a result of convergent evolution
  • It allows for the exchange of genetic material between organisms

    • What is the main difference between transcription in prokaryotes and eukaryotes?

  • The location of transcription and translation (correct)
  • The type of RNA transcript produced
  • The number of polymerases used
  • The timing of transcription and translation

    • What is the function of a start codon in the translation process?

    <p>It initiates the translation process</p> Signup and view all the answers

    Why is it important to consider the reading frame when decoding a sequence of codons?

    <p>To ensure that the correct amino acid is synthesized</p> Signup and view all the answers

    What is the significance of the template strand in DNA synthesis?

    <p>It is the non-coding strand that serves as a template</p> Signup and view all the answers

    What is the central dogma in the context of genes and proteins?

    <p>A theory that genetic information only flows in one direction from DNA to RNA to proteins.</p> Signup and view all the answers

    What is the function of a gene, according to Beadle and Tatum's experiment?

    <p>To provide the instructions for making proteins.</p> Signup and view all the answers

    What is a chromosome, according to the text?

    <p>A structure found inside the nucleus of a cell, made up of proteins and DNA organized into genes.</p> Signup and view all the answers

    What is the result of many genes encoding for proteins other than enzymes?

    <p>The creation of transport, signaling, and structural proteins.</p> Signup and view all the answers

    How do we get 64 possible codons?

    <p>By combining 3 nucleotides.</p> Signup and view all the answers

    What is a characteristic of many proteins, according to the text?

    <p>They are composed of multiple different polypeptides.</p> Signup and view all the answers

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