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MCAT Biological and Biochemical Foundations of Living Systems Flashcards: 2b Prions Viroids

Study 2b Prions Viroids in MCAT Biological and Biochemical Foundations of Living Systems with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Identify the correct statement about viroid protein-coding capacity.

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ANSWER

Viroids do not encode proteins. Viroids lack open reading frames and rely entirely on host machinery, without translating any proteins.

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MCAT Biological and Biochemical Foundations of Living Systems: Foundational Concept 2: Cells and Cellular Organization

You are hereSubviral Particles: Prions and Viroids (2B)25 cards

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What this deck covers

This deck focuses on 2b Prions Viroids, giving you a quick way to review the definitions, rules, and examples that matter most for MCAT Biological and Biochemical Foundations of Living Systems.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
A comparative microbiology course lab examines two subviral particles. Sample X retains infectivity after RNase and DNase treatment but loses infectivity after strong denaturation that disrupts protein conformation. Sample Y loses infectivity after RNase but is unaffected by protease treatment and shows no detectable protein by mass spectrometry. In host tissue, X is associated with progressive neurodegeneration, while Y is associated with reduced plant vigor and altered gene expression. Which statement best distinguishes replication/propagation between these subviral particles within cells?
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