| Subject: |
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Re: Jumping Genes (Transposons) Selfish DNA Parasites |
| Name: |
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Brian |
| Date Posted: |
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Jan 23, 08 - 6:30 PM |
| IP Address: |
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171.67.105.204 |
| Email: |
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counterbrian@yahoo.com |
| Message: |
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Listen, I'm waiting for a real challenge. Why don't you ask me how an inferior brain like that of John could evolve into a far superior brain, like that of Brian?
Answer: the theory of evolution does not claim that my brain evolved from John's, it simply claims that we have a common ancestor. Hehehe.
Now, you once again have made me very proud, John, I can see that you are learning. Really, this pleases me greatly. Wikipedia, while not truly peer-reviewed per se, is a good start for many of the topics we are discussing.
I just want to make sure we agree on a couple of points. First, transposition of pieces of DNA code occurs in all major branches of life. In other words, pieces of DNA in an organism's genetic code occasionally pick up and leave and replant themselves in a different position in that organism's genome. Are we in agreement on that?
Second point: you say "[transposons] CAN cause irreparable damage to the genome." (my caps) I don't want you to spend another 250 words on the definition of CAN, so I'll just ask, do transposons ALWAYS cause irreparable damage? Or can I assume that by "can", you really do mean that they SOMETIMES cause irreparable damage, and sometimes they don't? When they don't cause irreparable damage, what do they do? Do they EVER do anything good for an organism?
Finally, I'm wondering where exactly I said that "jumping genes caused favorable mutations....conferring large, superior brains..". I just can't seem to find where I wrote that, could you point it out to me? Thanks. |
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