The genome is the complete set of genetic information that determines the characteristics of an organism. The genome is made up of genes, DNA, and chromosomes.
Genes are the basic physical and functional unit of heredity. They are the sequence of a DNA that codes a protein. Genes are inherited from parents.
Chromosomes are found in every cells of the body containing the genes. In total, there are 46 chromosomes.
So, in the simplest way, we can say DNA are the words, which are arranged in paragraphs as a form of genes. Chromosomes are like chapters that contain different paragraphs (gene) in it. And genome is the entire book from the beginning to the end.