Final answer:
DNA is the genetic material that determines the development, repair, and chemical transport processes in the body, supporting the true statement according to the Central Dogma of Molecular Biology.
Step-by-step explanation:
The statement that DNA ultimately determines everything from how the body develops, repairs itself, and transports chemicals introduced into circulation is true. DNA is the basis of the Central Dogma of Molecular Biology, which describes the flow of genetic information in an organism from DNA to RNA to protein. This process controls the synthesis of all proteins in the body, including enzymes and structural proteins that are fundamental in forming cells, tissues, and organs, contributing to growth, development, and repair. DNA serves as the genetic material passed from parent to offspring and contains the instructions to direct and regulate the construction of proteins necessary for the cell to perform all of its functions. The genotype determines which proteins are expressed at a given time, affecting the phenotype of the cell.