differences between a gene and dna
Genes contain DNA (deoxyribonucleic acid). DNA is the chemical basis of heredity. Think of it this way: DNA is in genes, genes are on chromosomes. When mapping all genes on all human chromosomes was first seriously conceived, it was called the Human Genome Project-a combination of gene and chromosome.hink of it this way: DNA is in genes, genes are on chromosomes. When mapping all genes on all human chromosomes was first seriously conceived, it was called the Human Genome Project-a combination of gene and chromosome.