The Impact of Radiation on Humans and the Environment
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Questions and Answers

What caused the Chernobyl disaster?

  • Failure of the cooling system due to a power outage
  • Shutting down water turbines for maintenance
  • An error in operation of the nuclear reactor (correct)
  • Ignition of Uranium due to a natural disaster
  • How has the detection of ionizing radiation improved since the early days?

  • By implementing advanced cooling systems in nuclear reactors
  • By developing more efficient water turbines for cooling Uranium
  • By using Geiger counters and other devices for accurate detection (correct)
  • By increasing the number of reactors in operation
  • What percentage of the annual U.S. Population exposure to ionizing radiation is estimated to be from man-made sources?

  • 5%
  • 25%
  • 10%
  • 18% (correct)
  • What can more sophisticated detectors evaluate about ionizing radiation?

    <p>Energy spectrum and type of radiation</p> Signup and view all the answers

    What was the role of the water turbines in the Chernobyl disaster?

    <p>Cooling Uranium and generating electricity</p> Signup and view all the answers

    Which process involves the synthesis of RNA from DNA?

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

    What is the term used for the synthesis of a protein using the information in an mRNA molecule?

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

    Which molecules are involved in the one-step gene expression process of transcription?

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

    What is the term for the process of synthesizing RNA by using DNA as a template?

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

    Where does the synthesis of a protein take place using the information in an mRNA molecule?

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

    What is the first step of gene expression?

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

    Which molecules are involved in the one-step gene expression process of transcription?

    <p>tRNAs and rRNA</p> Signup and view all the answers

    What is the second stage of gene expression called?

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

    Which process involves using the information in an mRNA molecule to synthesize a protein?

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

    What term describes the process of information transfer from DNA to RNA by complementary base-pairing?

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

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