I know it's not Friday, but it's interesting to note that fifty years after DNA was discovered there
Cambridge University scientists have
completed a 2bn-letter dictionary of DNA and distributed it freely to researchers in 135 countries.
Cambridge's Wellcome Trust Sanger Institute has completed a dictionary of DNA bases of a nematode worm, a representative human, a laboratory mouse, and 25 microbes including malaria, tuberculosis bacillus, leprosy, and meningitis. It should also be noted that the Sanger Institute's dictionary is an order of magnitude more accurate than the international standard (though to be honest I don't know how this compares with other efforts, if someone knows, I'd be interested to find out).
I'm also quite glad to hear that this is being freely distributed, as Cambridge was making worryingly proprietorial noises towards it's researchers' work as recently as a year or two ago.
Full disclosure: I'm a tab myself, and have even gone drinking in the Eagle, the pub Watson and Crick ran to to celebrate their discovery (and frankly, their beer selection is a bit poor).