Ascientist has inserted a gene into a plasmid. which enzyme should she use to join the sticky ends of the gene and the plasmid?
restriction enzyme
ligase
rna polymerase

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.