tag:blogger.com,1999:blog-7785493.post4050674862115479164..comments2024-01-04T04:11:55.717+02:00Comments on Dienekes’ Anthropology Blog: Review article on epigenetic inheritanceDienekeshttp://www.blogger.com/profile/02082684850093948970noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-7785493.post-8074738296923541662009-06-14T23:57:08.043+03:002009-06-14T23:57:08.043+03:00This "epigenetic inheritance" reminds me...This "epigenetic inheritance" reminds me of Darwins pangeneses hypotheses (http://en.wikipedia.org/wiki/Pangenesis). Darwins problem was that if information was sent from the various cells of the body to the germcells, how come that parents who lost their arms do not give birth to one-armed babies? Or just think about the cultural practice involving the private parts of little boys...<br /><br />Inherited epigenetic modifications must be passed on through the germline. That leaves just a little space for environment based modification of gene expression status, like methylation of DNA. This is far from both Lamarck and Darwins pengeneses. Or do somebody think its even possible with signals from the somatic cells affecting the germcells? I do not think so.Emil Nilssonhttps://www.blogger.com/profile/01974865634632370551noreply@blogger.comtag:blogger.com,1999:blog-7785493.post-72306662769044292042009-05-19T21:37:00.000+03:002009-05-19T21:37:00.000+03:00Eva Jablonka is a single-issue bore who has been p...Eva Jablonka is a single-issue bore who has been playing the same record for about 20 years. It's a bit like D. S. Wilson and group selection - these people seem to think if they keep repeating themselves for long enough they will wear down the opposition. Unfortunately, they may be right.DavidBhttps://www.blogger.com/profile/11854270617991992947noreply@blogger.comtag:blogger.com,1999:blog-7785493.post-1686026380663618062009-05-19T10:52:00.000+03:002009-05-19T10:52:00.000+03:00I would not go that far: fundamental evolution sti...I would not go that far: fundamental evolution still seems to happen through genetic changes. What epigenetics seems to do is to fine-tune that basic genetic frame into variable derived forms, which can be inherited even for several generations but do not directly alter the genetic structure (so are in fact reversible probably). <br /><br />It is very posible though that some phenotypic traits are defined by epigenetic semi-inheritable modifications as much as by genes.<br /><br />At least that is what I understand.Majuhttps://www.blogger.com/profile/12369840391933337204noreply@blogger.comtag:blogger.com,1999:blog-7785493.post-29381429775083119512009-05-19T07:11:56.168+03:002009-05-19T07:11:56.168+03:00The most amazing thing about this is that Lamark m...The most amazing thing about this is that Lamark may have been basically correct after all.terrythttps://www.blogger.com/profile/17327062321100035888noreply@blogger.com