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If you mean change in genes, this is done by a process called recombination, whereby chromosomes switch legs at random points to help add variety to our genes.

But I suspect you mean how identical cells in some kind of embryo form different types of cells. At a point in the growth of the embryo, the cells start reacting to external factors, mostly chemicals produced by the cells around it. Although all cells contain all genes, the chemicals act as a switch to turn genes on or off. Cells on the outside of the embryo get different signals than those on the inner layers. Cells also tend to express genes that are expressed in the cells surrounding it, because of the chemical signals given off by those cells. As cells start to change what genes they express and become more specialized they give off more and more specific chemicals, making the differentiation that much more complex. This is a very complicated process, but I hope that this very brief overview has helped. For more information, research developmental Biology, differentiation, and specialization.

I have a BS in molecular and cell biology.

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Q: How can cell division cause differentiation?
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Is it true the differentiation process begins with the very first cell division after the formation of the zygote?

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Know Why mitosis occur in organisms?

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Why do we have cell differentiation in the body?

to differentiation the cells


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The purpose of cell differentiation is to allow a regular cell to develop into a specific cell.


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What is the process that organisms undergo beginning with fertilization and continuing until an organism reaches maturity. It includes cell division and differentiation.?

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