maggiekb at April 21st, 2014 15:46 — #1
thaumatechnicia at April 21st, 2014 16:21 — #2
Let me see if I've got this right, Maggie: so what you're saying it that 'Epigenetics could not help explain differences between us and Neanderthals'...
/I was told once that "This trade agreement could create jobs" also means "This trade agreement could destroy jobs" and "This trade agreement could have no effect on jobs".
//The article's title is less open to interpretation: "Epigenetics Helps Explain Early Humans’ Appearances"
///So, the difference between us and them might be due to farts? Wow!
brainspore at April 21st, 2014 16:27 — #3
Methylation […] probably played a role in the difference between human body types and the bodies of Neanderthals.
stephen_schenck at April 21st, 2014 16:28 — #4
Methylation — where a chemical compound attaches to DNA and changes the way that DNA is expressed without changing the DNA, itself
Well... that's one place where methylation occurs, but it's hardly DNA-specific.
Isn't methylation just a general term for popping-on a methyl group to an existing molecule?
maggiekb at April 21st, 2014 17:28 — #5
Yes. But I'm trying to quickly clarify what the hell epigenetics is in a sentence. So there's that.
nscafe at April 21st, 2014 17:47 — #6
He kind of looks like me... the Neanderthal is in the HOUSE! He's calling from inside the HOUSE! Wait, he's ordering insurance?
boundegar at April 21st, 2014 20:10 — #7
This is really interesting, especially because it was recently found methylation can be inherited, which kind of throws a little Lamarckism back into the mix.
kimmo at April 21st, 2014 20:28 — #8
I keep saying Lamarck's time is nigh.
prestonsturges at April 21st, 2014 20:59 — #9
Meh. This strikes me as a word salad (Methylation! Neanderthals!) of untestable hypothesis.
Dysmorphic body features are pretty common in modern man, but generally these are actual heritable mutations or chromosomal aberrations that might make people sterile. If methylation caused dysmorphism, we'd be studying it. BTW I once saw a teenage girl in a wheelchair who had birth defects, and she had amazing cave man brow ridges.
Probably the real role of methylation is seen in mental illness. Adverse conditions effect the development of the young brain at the level of methylation, and this persists for life and probably into subsequent generations.
michael_matise at April 22nd, 2014 16:52 — #10
Sure, more accurately it should read "DNA methylation".
technogeekagain at April 22nd, 2014 19:12 — #11
Interesting timing --I'm currently reading Darwin's Radio by Greg Bear.
maggiekb at April 26th, 2014 15:46 — #12
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