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Shuffle & Swap

"Why We Have Sex: It's Cleansing"

"Scientists have long wondered why organisms bother with sexual reproduction. It makes a whole lot more sense to just have a bunch of females that can clone themselves, which is how asexual reproduction works.

Turns out sex might have evolved as a way to concentrate lots of harmful mutations into individual organisms so they could be easily weeded out by natural selection, a new computer model suggests.

The classic explanation for the onset of whoopee, about 1 billion years ago, is that it provides a way for organisms to swap and shuffle genes and to create offspring with new gene combinations that might survive if the environment suddenly changes."

Comments

( 6 comments — Leave a comment )
surrealkitten
Mar. 2nd, 2006 06:17 pm (UTC)
i thought we knew this already.
silverdee
Mar. 2nd, 2006 08:09 pm (UTC)
I'd never really thought about the efficiency of starfish and cacti procreation thanks to shedding body parts.
londonlust
Mar. 2nd, 2006 10:19 pm (UTC)
the onset of whoopee

LOL!!
silverdee
Mar. 3rd, 2006 11:46 am (UTC)
The article about male elephants' stinky "cologne" is amusing, too.
joybilee
Mar. 4th, 2006 12:50 pm (UTC)
yeah, that's why i have sex anyway.
silverdee
Mar. 4th, 2006 07:29 pm (UTC)
Just the thought of genetic robustness puts me in the mood immediately.
( 6 comments — Leave a comment )

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