Monday, September 27, 2010

Adam's Curse pt. 2

I'm in pain as I type this because I donated plasma and they bruised my pinky finger, trying to get blood out of it. OW!

Nothing terrible controversial happening yet. I'm a little over halfway through the book. In this section, Sykes looks at y-chromosomes in various parts of the world, trying to find their common male ancestor. He also tackles the question of why do we even have sex when we could just clone. His answer isn't that we do it to spread apart the genes and help our evolutionary chances down the road, as some geneticist propose. Rather he narrows it down to the simple fact that the micro-organisms living inside us have a better chance of keeping us alive if they are varied slightly from generation to generation. If we were all exact replicas of our ancestors, we would never have survived the black plague or other major epidemics.

He hasn't talked about this potential future without men yet. We'll see what happens.

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