Cellular Differentiation
Cellular Differentiation refers to the process where a less specialized cell becomes a more specialized type of cell, gaining new functions and losing the ability to perform others. This process is critical for development and tissue repair in multicellular organisms. In the context of Epigenetics, Cellular Differentiation is the study of how changes in gene expression, which are not due to alterations in the DNA sequence itself, can lead to the development of different cell types from a common progenitor cell. These changes can be heritable and reversible, allowing for the dynamic regulation of gene expression during development and throughout an organism's life. Cellular Differentiation is thus an essential aspect of Genetics and Epigenetics, as it plays a key role in shaping the complexity and diversity of cell types within an organism.