Gene Expression and Cell Specialization

AP Biology· difficulty 3/5

A eukaryotic gene's protein product was made by which sequence of events?

  • A

    Transcription in nucleus → mRNA processing → mRNA export → translation in cytoplasm

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  • B

    Translation of DNA → mRNA processing in nucleus → protein export to cytoplasm

  • C

    Splicing in cytoplasm → transcription in nucleus → translation at the nuclear envelope

  • D

    Transcription in cytoplasm → mRNA processing → mRNA import → translation in nucleus

Explanation

Eukaryotic transcription happens in the nucleus; mRNA is processed (cap, poly-A, splicing), exported, then translated by cytosolic or ER-bound ribosomes.

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