The gel below contains DNA ladder in the first lane followed by four dna samples on lens two through five. The DNA ladder has 10 bands that are each separated by 100 base pairs for lengths 100-1000. It also has bands at 1200 base pairs and 1500 base pairs. Which dna fragment is largest.

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.