Date: 05/23/05 (Java Web)    Keywords: no keywords

Embryonic stem cells with identical genomes grow into distinctive tissues, such as heart, bone, and brain. At one time, scientists believed the differences among cell types arose from various sets of genes switched on inside developing cells. Then, studies showed that adult neurons uniquely lack a protein that permanently turns off neuronal genes in the [...]

Source: http://blog.taragana.com/index.php/archive/gene-keeps-neural-cells-on-correct-developmental-path/