Evolution: It’s all in how you splice it... MIT biologists find that alternative splicing of RNA rewires signalling in different tissues and may often contribute to species differences. Full story here.
Thoughts on the fundamental logic--i.e., the molecular logic--of life, plus other life items (the first are copied from my EStar blog, from 2006 onwards). The foundation of life is the logic of the atom; built on that is the logic of the molecule; built on that is the logic of the cell; built on that is the logic of the organ; built on that is the logic of the organism.