A non-cannabis post, but still quite fascinating:
For my friends who may not quite grasp epigenetics, the report here is both an exciting discovery (that seems likely to be a very important finding) and it is very well explained.
This group identified areas of the chromosomal histones of earthworms that open up regions of DNA so that those areas are more easily read to make proteins. In different cellular environments, those openings may produce different product proteins (which brings up interesting questions about what we understand about histones, about DNA replication). Also, it appears that the changes to histones are passed to future generations, which provides evidence that would support a mechanism for one’s environment to impact the differential expression of genetics.