Notes Cell Differentiation.ppt - Cell Differentiation •...

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Cell Differentiation Humans start as a single cell that divides and differentiates Specialization = Division of Labor Most differentiation happens during embryonic development Some during adolescence/puberty Between differentiation periods we experience growth via cellular division
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How Cell Differentiation Works During Embryonic Development Initially genes for cell division are the only ones turned on to increase the number of cells After “the embryo” reaches the magic number of cells, different genes are turned on in groups of cells One set will become placenta and umbiliacal cord One set will become the baby Genes are then turned on and off in a specific order to create the hundreds of different cell types in our bodies
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How Cell Differentiation Works When cells are fully differentiated only the genes needed for each specific cell type are turned on in each cell type Ex. In muscle cells only muscle related genes and the
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