How does normal gene expression differ from epigenetic effects on the genome?

Normal gene expression differs from epigenetic effects on the genome because epigenetic means that the gene expression is altered but the DNA remains the same. These may be heritable. In normal gene expression, gene information is used to synthesize a product, commonly a protein or RNA. These products are essential for life.

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey