Answer:
DNA makes us all unique by controlling the production of gene that make us look different and have the structures to better survive within our environment.
Step-by-step explanation:
DNA is the molecule that contains the genetic information, dependent on the sequence of nucleotides that form its structure.
Chromosomes are formed by a DNA molecule, whose fragments form genes, structures that define every characteristic and function of a living being.
The characteristics expressed by the genes differentiate individuals of the same species and other species, allowing their functions, including survival in their environment.