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Originally posted by SystemResistor
Could it be that, there was an advanced civilisation, comprised of human beings, that landed on Earth and established advanced civilisations with what remained of thier spacecraft, interbreeding with our primitive ancestors?
Originally posted by the_0bserver85
I know where you get this idea, "Battle Galactica" right.
Originally posted by SystemResistor
Could it be that, there was an advanced civilisation, comprised of human beings, that landed on Earth and established advanced civilisations with what remained of thier spacecraft, interbreeding with our primitive ancestors?
All DNA gets passed down from parent to offspring, a process that's been going on for billions of years. "About four to five hundred million years ago, the common ancestor of fish, birds and mammals was a creature that lived in the ocean," explains Haussler,
When Haussler and his colleague Gill Bejerano used computers to compare the human genome with the mouse and the rat genomes, they assumed that because humans, mice, and rats look so different, there would be differences in the genome. They did see the expected differences in the shared genes from the common ancestor, but they were surprised to find long stretches of shared "junk" DNA that were exactly the same in humans and rodents. says Haussler. "I about fell off my chair. It's very unusual to have such an amount of conservation continually over such a long stretch of DNA."
Many of these stretches of DNA, called "ultra-conserved" regions, don't appear to code for protein, so they might have been dismissed as junk if they hadn't shown up in so many different species. And if nature has gone to so much trouble to preserve these ultra-conserved regions over all these years, Haussler reasons, then they must be more important than just "junk." "From what we know about the rate at which DNA changes from generation to generation, the chance of finding even one stretch of DNA in the human genome that is unchanged between humans and mice and rats over these hundred million years is less than one divided by ten followed by 22 zeros. It's a tiny, tiny fraction. It's virtually impossible that this would happen by chance."
If you hypothetically wanted to record an eternal message that could be decoded by a creature that eventually had evolved enough intelligence to decode it - the place to put that message would not be on some monument or some text which might be swept away but actually on the DNA of the creature itself.
Originally posted by SystemResistor
Could it be that, there was an advanced civilisation, comprised of human beings, that landed on Earth and established advanced civilisations with what remained of thier spacecraft, interbreeding with our primitive ancestors?