Epigenetic Memory in Chromatin

Epigenetic memory in chromatin helps cells keep their identity without changing the DNA sequence. Epigenetics is the study of inherited changes in cell phenotype that do not alter DNA. This kind of memory helps maintain cell lineage, position-effect variegation, dosage compensation, and chromatin structures such as telomeres...

Although all somatic cells contain the same genetic information, the cells of the liver divide to form only liver cells, and skin cells divide into new skin cells.

Each tissue type has specific chromatin packaging and histone modifications which result in distinct gene expression patterns. 

These structural features of chromatin - ...