Epigenetics, i.e. the inheritance of traits that does not involve a change in the DNA sequence, was once a controversial subject that has since become a central focus of biological research. Epigenetic inheritance is now studied by numerous national and international research programmes. Many cellular regulatory and differentiation processes are controlled by epigenetic mechanisms that take place on different levels.
https://www.gesundheitsindustrie-bw.de/en/article/dossier/epigenetics-heritable-traits-without-changing-the-dna-sequence