Gene Expression Interactive

Chemical Signals

Click a signal to send it to the cell

Current State

The cell is an unspecialized stem cell. Send a signal to see which genes activate!

Key Misconception Fix

DNA does NOT change! All cells have the same 20,000 genes. Signals control which genes are turned ON or OFF - this is gene expression.

Data Journal — Record & Analyze Your Experiments

My prediction for the key variable:

#	Observation

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Predict • Observe • Explain

Before running the simulation, predict: what do you think will happen to Gene Expression G7C1W3 when you change the variables?

Run the simulation with different settings. Record the patterns and relationships you see.

Compare your observations with your prediction. Use scientific vocabulary to explain why Gene Expression G7C1W3 behaves this way.