INTRODUCTION TO MICROSCOPY CELL BIOLOGY
DIFFERENTIATED CELL
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Question
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How do stem cells know what type of cells to differentiate into?
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The nucleus has instructions to turn some genes on and some genes off.
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Signals from chemicals in the organism or from the environment determine which genes will be turned on and off.
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Genes turn on and off randomly.
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The cell has unique DNA that determines what the cell will become.
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Explanation:
Detailed explanation-1: -A number of factors have been shown to play a role in stem cell differentiation including, soluble cues (i.e. growth factors and cytokines), cell-cell contacts, cell-extracellular matrix (ECM) contacts, and physical forces (Figure).
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