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Critical Thinking:
A researcher      received two samples: one of a virus and the other of a viroid. Unfortunately, the labels were lost.      Scientist felt that it could be distinguished the two by analyzing the      presence or absence of a single molecule. What molecule would be searching      for and why?
If you were      asked to name one scientist mentioned in this lecture/chapter for the      Nobel Prize award, who would it be? Make a statement supporting your      choice.

 

Struggling with where to start this assignment? Follow this guide to tackle your assignment easily!

Step 1: Understand the Question

The task requires you to analyze how a researcher can distinguish between a virus and a viroid by identifying the presence or absence of a specific molecule. Additionally, you need to select a scientist for a Nobel Prize nomination based on their contribution to a related scientific discovery and justify your choice.

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Step 2: Break Down the Question

Part 1: Molecule to Search For

• Key Concept:
  Research and explain the structural differences between viruses and viroids. Specifically, focus on the presence or absence of protein in their composition.
  • Viruses: Composed of genetic material (DNA or RNA) surrounded by a protein coat (capsid).
  • Viroids: Composed solely of a circular strand of RNA without a protein coat.
• Guidance for Answering:
  The molecule you are searching for is protein because it is present in viruses but absent in viroids. Write a clear explanation of how this distinction helps identify the two samples.

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Part 2: Nobel Prize Nomination

• Key Concept:
  Consider a scientist whose discovery significantly impacted our understanding of infectious agents, particularly viruses, viroids, or related entities.
  Example: Stanley B. Prusiner, who discovered prions (protein-based infectious agents), revolutionized the understanding of unconventional pathogens and won a Nobel Prize for his work.
• Guidance for Answering:
  Name a scientist mentioned in your lecture or chapter, explain their discovery, and highlight its significance. Provide a reasoned argument supporting why their work is deserving of recognition.

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Step 3: Structure Your Answer

Example Answer Framework:

1. Molecule to Search For and Why:
   • Introduce the structural difference between viruses and viroids.
   • Explain the role of protein in viruses and why its absence identifies viroids.
   • Conclude by stating the molecule the researcher should search for: protein.
2. Nobel Prize Nomination:
   • Name the scientist and their discovery.
   • Briefly describe the context and importance of their contribution.
   • Justify why their work is groundbreaking and deserving of a Nobel Prize.

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Step 4: Write and Refine Your Answer

• Use clear, concise language and cite examples or references from your textbook.
• Ensure your argument is logical and backed by evidence from your readings.
• Proofread your work for accuracy and coherence.

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By following this guide, you’ll be able to construct a well-organized and insightful response to the critical thinking question!

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