Transcription and Regulation
The transcriptional regulatory proteins in eukaryotes which induce transcription usually have

at least one distinct domains of protein structure, a DNA binding domain and an activation domain
at least two distinct domains of protein structure and a DNA binding domain
none of these
at least two distinct domains of protein structure, a DNA binding domain and an activation domain

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Transcription and Regulation
Multiple copies of 5S genes, located at a chromosomal site distinct from the other rRNA genes

are transcribed by rRNA polymerase I and the 5S rRNA
are transcribed by rRNA polymerase III and the 5S rRNA
are transcribed by rRNA polymerase II
are transcribed by DNA polymerase I

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Transcription and Regulation
The major function of RNA polymerase's sigma factor is

recognition of the translational stop sequence
recognition of the translational start sequence
recognition of the transcriptional start sequence
recognition of the transcriptional stop sequence

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