As is histone modification: https://www.frontiersin.org/articles/10.3389/fgene.2019.00192/full https://www.frontiersin.org/articles/10.3389/fgene.2019.0019...

As is histone modification: https://www.frontiersin.org/articles/10.3389/fgene.2019.00192/full https://www.frontiersin.org/articles/10.3389/fgene.2019.0019... And both can be modified by changes in the environment and diet.