Central dogma Original Scenario-Based Practice

Biology · Molecular Genetics · Biology · Gene Expression

1 Biology practice questions on Central dogma. Questions built around original scenarios.

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Questions

  1. 1.

    Astrobiologists studying a newly discovered deep-ice organism, Xenocelis, confirm that it utilizes the standard central dogma of molecular biology to express its genetic information. During an experiment, researchers introduce a compound named Stasis-9 that selectively disables the molecular machinery responsible for reading mRNA transcripts to polymerize amino acid chains, while RNA synthesis and DNA duplication remain unaffected. Based on the principles of the central dogma, which stage of gene expression is directly inhibited by Stasis-9?

    • A) Translation, thereby halting the synthesis of functional polypeptides from mRNA templates
    • B) Transcription, thereby halting the synthesis of messenger RNA from chromosomal DNA
    • C) Reverse transcription, thereby preventing RNA from generating complementary DNA strands
    • D) DNA replication, thereby preventing the duplication of the genome prior to cell division

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