Though the different cell types in a multicellular organism share a common genotype, they can be markedly different in terms of phenotype. These variations in gene expression patterns are stable over mitotic cell divisions, but do not involve variations in the underlying genotype of the organism. The study of the mechanisms that maintain these differences among cell groups without changes to the DNA sequence itself is called epigenetics…
That’s yet another day spent writing my epigenetics article. Or pretending to, anyway. In-between trips to the Home Depot, replacing various things in the house, and fixing up my computer, I actually managed to get quite a bit written.
Meanwhile, Imagine has been getting very little attention. It’s my little Java 6 image manipulator project, launchable via Web Start.