Signal Transduction Is the Process by Which

question 117

Multiple Choice

Signal transduction is the process by which:

• A)transcription factors bind to cis-regulatory regions of DNA and either activate or repress transcription.
• B)a specific combination of transcription factors determines the developmental pathway in a cell or group of cells.
• C)a single master gene, or signal, activates a series of downstream genes that lead to cell differentiation.
• D)an extracellular molecule activates a membrane protein, which in turn activates molecules inside the cell.
• E)None of the answer options is correct.

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