Protein Biosynthesis Experiments in the 1950s
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Questions and Answers

Where in the cell were labeled proteins found minutes after injection of radioactive amino acids?

  • Golgi apparatus
  • Mitochondria
  • Endoplasmic reticulum
  • Small ribonucleoprotein particles (correct)
  • Who identified ribosomes as the site of protein synthesis from amino acids?

  • Robert Holley
  • Albert Claude
  • Mahlon Hoagland
  • Paul Zamecnik (correct)
  • What was found to activate amino acids for protein synthesis in liver cells?

  • DNA
  • Ribosomes
  • Glucose
  • ATP (correct)
  • What type of RNA was discovered and characterized by Robert Holley?

    <p>Transfer RNA (tRNA)</p> Signup and view all the answers

    Which enzymes catalyze the process of amino acids becoming attached to tRNA to form aminoacyl-tRNAs?

    <p>Aminoacyl-tRNA synthetases</p> Signup and view all the answers

    Who, along with Paul Zamecnik, found that amino acids were 'activated' for protein synthesis using ATP and liver cell cytosolic fraction?

    <p>Mahlon Hoagland</p> Signup and view all the answers

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