⚙️ how
How do stem cells know what cell to become?
Human BiologyCell Biology
Quick Answer
Stem cells respond to chemical signals and gene-regulation programs that tell them when to specialize. Once a cell commits to a certain path, its gene activity changes to match that role.
The Full Story
Stem cells are unspecialized cells that can divide and either remain stem cells or become more specialized. Signals from nearby cells, hormones, and the cell’s environment help switch on sets of genes that guide development. As cells differentiate, they shut down genes they no longer need and activate the genes required for their new function. This process is essential for forming tissues such as blood, skin, muscle, and nerves.
Key Facts
1.Stem cells can self-renew and differentiate
2.Cell signals influence which genes are activated
3.Differentiation involves turning some genes on and others off
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Suggested video title for this topic:
"How a blank cell chooses its future job."