Afundamental aspect of gene regulation lies in the fact that mrna molecules are because of this trait, these molecules won't remain in the cell long after transcription has been turned off by the cell, regulating gene expression.

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.