October 24, 2014

Dr. Josh Question of the Week! – Transcription Factors


The correct answer choice here is D. This is a question that we don’t want to OVERthink. From the question stem you know that the transcription factors will bind to nucleic acids. This means that SP1 will bind to both DNA and RNA. So all you need to do to answer this question correctly is figure out which organelle does NOT contain DNA or RNA.

(A) rRNA synthesis occurs in the nucleoli and SP1 would be found there.

(B) Mitochondrial DNA must replicate and SP1 would be fuond there.

(C) SP1 would be found in ribosomes since they are …

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