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Biology, 10.12.2020 08:20 jakiyahporter0817

How do stem cell know what types of cells to differentiate into? A. The nucleus has instructions to turn some genes on and some genes off
B. Signals from chemicals in the organism (transcription factors) or from the environment determine which genes will be turned on and off
C. Genes turn on and off randomly
D. The cell has unique DNA that determines what the cell will become

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