Final answer:
Every cell within a human body contains the same DNA. DNA carries the genetic information that determines the characteristics and functions of each cell. While cell size, cell shape, and cellular metabolism can vary between different types of cells, the DNA remains the same.
Step-by-step explanation:
Every cell within a human body contains the same DNA. While cell size, cell shape, and cellular metabolism can vary between different types of cells, the DNA remains the same. DNA carries the genetic information that determines the characteristics and functions of each cell, even though different cell types may have different structures and functions.