Are we entering an epigenetic spiral of it?
The relatively new fields of epigenetics and nutrigenomics are showing that changes in gene expression can be produced by environmental mechanisms. Could rising levels of obesity alter our genes, and, in turn, could these obesity-favoring alterations be passed on to future generations?
OK, I’m a little confused. Isn’t there a difference between the gene expression and the gene itself? Are they really saying that the environment can change the genes in a way that makes the trait acquired as a result of the environment heritable? That is, are they saying that Lamarck may have been onto something?
[Update a few minutes later]
Just a coincidence, I’m sure, but amusing that this story came out two days before Darwin Day.
And of course, Darwin was born on exactly the same day as Abraham Lincoln, in 1809. In fact, in protest of “President’s” Day, which trivializes the memory of both Washington and Lincoln, I think I’ll go put out the flag.