1. Cell differentiaton During Development Dayana R.

2.  Understand the concept of Cell Differentiation  Learn how cells become different  Demostrate the Importance of the cell differentiation during development

3. Is the process by which a less specialized cell becomes a more specialized cell type.Differentiation occurs numerous times during the development of a multicellular organism as the organism changes from a simple zygote to a complex system of tissues and cell types. What is Cell Differentiation?

4. In molecular terms, cell differentiation means variable gene activity in different cells of the same organism.

5. Cell differentiation process might be understood with the simple example of embryo development. In most animal species females produce large unfertilized eggs that contain most of the materials and nutrients required to form an embryo.

7. CHARACTERISTICS OF CELL DIFFERENTIATION 1. It is stable phenomenon 2. It is induced by specific stimuli 3. It precede morphological difference 4. It is controlled by genetic factors

9. First type these cells are no longer capable of cell division and cannot be replaced. Second Type These cells enter the G0 phase of the cell cycle Third type most fully differentiated cells, however, are no longer capable of cell division.

11. 1. Transcriptional control 2. Translational control 3. Gene amplification 4. Gene rearrangement 5. Transpositions

13. Example For Cell Differentiation