Principles of Development

It is a progressive step by step process most cells

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Unformatted text preview: rrange themselves into three distinctive latyers, which then give rise to the skin, gut and other basic parts of the body. Later in development, certain animal cells break away from their original sites and migrate to new locations in the embryo. This gives rise to germ cells, pigment containing cells, precursors of blood cells. If this is don’t at the wrong place or time, it is likely it will be deform and die. Cell Differentiation: The process of becoming a specialized type of cell. Some are muscle cells that contract and relax, others are nerve cells that conduct electrical signals in your body. It is a progressive, step- by- step process. Most cells become committed to a certain cell fate early in development and later become differentiated, meaning that they begin to look and behave like a specific cell type. Occurs through differential gene expression. Muscle cells and nerve cellsd are different because they express different genes and therefore produce different proteins. Cell- Cell Interactions: The most important cell- cell interactions involv...
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This note was uploaded on 02/13/2014 for the course BIO 103 taught by Professor Heidielmendorf during the Fall '10 term at Georgetown.

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