Chapter 1 - Origin of Life - PDF Document uploaded_MCQ from there.
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Questions and Answers

What was the critical characteristic of the macromolecule from which life evolved?

  • Ability to form complex structures
  • Ability to replicate itself (correct)
  • Ability to catalyze diverse chemical reactions
  • Ability to store large amounts of genetic information

    • What is the initial genetic system believed to have been?

  • Lipids
  • Proteins
  • RNA (correct)
  • DNA

    • What replaced RNA as the main genetic material later on?

  • Carbohydrates
  • Lipids
  • DNA (correct)
  • Proteins

    • What is the role of genes in the body?

    <p>They are instruction manuals written in DNA</p> Signup and view all the answers

    What is the role of RNA in making proteins?

    <p>It helps in making proteins</p> Signup and view all the answers

    What is the critical function of the phospholipid membrane in the formation of the first cell?

    <p>It kept everything inside the cell safe, allowing self-reproduction and further evolution</p> Signup and view all the answers

    What components make up the phospholipid membrane?

    <p>Hydrophilic and hydrophobic components</p> Signup and view all the answers

    What is the capability of RNA in terms of chemical reactions?

    <p>Capable of catalyzing a number of chemical reactions</p> Signup and view all the answers

    What is the function of genes in relation to proteins?

    <p>They make proteins through transcription and translation</p> Signup and view all the answers

    What was the likely scenario for the formation of the very first cell?

    <p>Self-replicating RNA was enclosed in a protective phospholipid membrane</p> Signup and view all the answers

    What is the critical characteristic of the macromolecule from which life evolved?

    <p>Ability to replicate itself</p> Signup and view all the answers

    What is the initial genetic system believed to have been?

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

    What was the likely scenario for the formation of the very first cell?

    <p>Enclosure of self-replicating RNA in a protective membrane</p> Signup and view all the answers

    What is the role of genes in the body?

    <p>They are the body's instruction manuals, written in DNA</p> Signup and view all the answers

    What replaced RNA as the main genetic material later on?

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

    What is the function of genes in relation to proteins?

    <p>They serve as templates for the synthesis of proteins</p> Signup and view all the answers

    What components make up the phospholipid membrane?

    <p>Hydrophilic and hydrophobic components</p> Signup and view all the answers

    What is the capability of RNA in terms of chemical reactions?

    <p>Catalyzing a number of chemical reactions</p> Signup and view all the answers

    What is the critical function of the phospholipid membrane in the formation of the first cell?

    <p>Keeping everything inside the cell safe and allowing self-reproduction</p> Signup and view all the answers

    What is the role of RNA in making proteins?

    <p>RNA helps in making proteins</p> Signup and view all the answers

    What is the critical characteristic of the macromolecule from which life evolved?

    <p>Ability to replicate itself</p> Signup and view all the answers

    What is the initial genetic system believed to have been?

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

    What replaced RNA as the main genetic material later on?

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

    What is the capability of RNA in terms of chemical reactions?

    <p>Catalyzing a number of chemical reactions</p> Signup and view all the answers

    What was the likely scenario for the formation of the very first cell?

    <p>Self-replicating RNA enclosed in a protective membrane</p> Signup and view all the answers

    What is the function of genes in relation to proteins?

    <p>Genes serve as the instruction manuals for making proteins</p> Signup and view all the answers

    What components make up the phospholipid membrane?

    <p>Hydrophilic and hydrophobic components</p> Signup and view all the answers

    What is the role of RNA in making proteins?

    <p>RNA helps in making proteins</p> Signup and view all the answers

    What is the capability of RNA in terms of self-replication?

    <p>RNA can serve as a template and catalyze its own replication</p> Signup and view all the answers

    What is the role of the phospholipid membrane in the formation of the first cell?

    <p>It kept everything inside the cell safe, allowing self-reproduction and further evolution</p> Signup and view all the answers

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