Malaria Delirium

Porque o trabalho enobrece o homem, mas vadiar é muito mais divertido!

Monday, July 28, 2008

Paleos

Interessante, educativo e descontraído. Para quem ainda não conhece.
Se estiverem aborrecidos e quiserem cultivar o biólogo em vós, cliquem aqui http://www.palaeos.com/index.html

Aconselho a "Origins of Eukarya". :D (ainda nao vi bem o resto)


"Like all other adolescents, Life grew much larger, discovered sex, and changed its mind frequently about what it was going to be when it grew up. Undoubtedly it tried out many forms and lifestyles which, had we learned of them at the time, we would have sternly disapproved. Life engaged in risky behaviors, such as carelessly spewing so much oxygen into the atmosphere that it nearly poisoned itself until it learned to adapt. It moved out from the warm geothermal vents where, perhaps, it was raised, and nearly froze to death once or twice by wandering into very serious Ice Ages without its mittens. Somehow, in spite of a number of these very close calls, it grew up into the sort of grown-up Life we know today."


"DNA isn't simply an information storage device. [...] ...we have to deal with the fact that DNA is, first and foremost, a really big, charged polymer. [...]There is nothing subtle about this. Long charged polymers of any kind bind water -- and anything else polar -- into a viscous glop with high osmotic pressure.
Worse, DNA glop (as we know from sad personal experience) is also highly vulnerable to damage by shearing, nucleases, radiation, and being looked at funny. "


"The Planctomycetes were almost completely ignored until about ten years ago. [...] they have come into their own in a practical way because they can degrade wastewater and sludge as almost nothing else can. This is probably because the Planctomycetes can do things with nitrogen which no other bacteria can manage. This includes the degradation of chitin, [...] which few organisms can digest. [...] planctomycetes can use almost anything as a carbon source. [...] with the result that it can manufacture all of the amino acids, digest chitin, and generally get by on almost nothing and almost anything, with or without oxygen. They make their living surviving the natural equivalent of being dropped on the floor, contaminated with yeast, and being left on the lab bench all night. " :O

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