Dna is able to control cellular activities most directly by regulating the process of what?

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.