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Transcription Original Scenario-Based Practice

Biology · Molecular Genetics · Biology · Gene Expression

1 Biology practice questions on Transcription. Questions built around original scenarios.

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  1. 1.

    Deep within the bio-synthetic core of the exploratory vessel Arboris, synthetic biologists observe a nano-probe tracking an engineered bacterial RNA polymerase traversing an alien DNA operon. The nano-probe records that the enzyme moves continuously along a specific DNA strand in the 3' to 5' direction, consuming ribonucleoside triphosphates to elongate a fresh transcript. Suddenly, an optical sensor reads the newly minted single-stranded sequence emerging from the exit channel as 5'-AUG-UCA-3'. Which nucleotide sequence was read directly by RNA polymerase along its template strand to generate this exact transcript?

    • A) 3'-TAC-AGT-5'
    • B) 5'-TAC-AGT-3'
    • C) 3'-UAC-AGU-5'
    • D) 5'-AUG-UCA-3'

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