The cells of each tissue type are distinct. For example, nerve cells are very different than muscle cells. This is because different cells make different proteins. How does this happen?

The cells of each tissue type are distinct. For example, nerve cells are very different than muscle cells. This is because different cells make different proteins. How does this happen?




A. In each cell type, specific genes are "turned on" or "turned off".
B. Different tissues have stem cells that have different properties.
C. Different types of cells have different genes in them.
D. All of the above are correct.


Answer: A


Biology

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