During the process of two rails, or sides, of dna break apart and attract new nucleotide bases to form a new and complete strand. during the process of , the two rails or sides break apart and pair up with rna nucleotides, assembling mrna. during the process of , mrna decodes information from the original dna master plan to build proteins in the ribosomes.

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.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.