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RPA 2 is one of the larger subunits of RNA polymerase in eukaryotes. It is homologous to the prokaryotic _____________

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RPA 2 is one of the larger subunits of RNA polymerase in eukaryotes. It is homologous to the prokaryotic _____________

(a) Alpha subunit

(b) Beta subunit

(c) Beta prime subunit

(d) Omega subunit

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I want to ask this question from Transcription in Eukaryotes : RNA Polymerases topic in section Gene Expression : Transcription Prokaryotes of Cytogenetics

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The correct answer is (b) Beta subunit

To elaborate: RPA 2 is homologous to the beta subunit while RPA 1 is homologous to the beta prime subunit which is the catalytic subunit.

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