Only one letter is different between the human gene and the chimpanzee gene.
A gene is a term to refer to the molecular unit of genetic inheritance that is composed of deoxyribonucleic acid, that is,
Man and chimpanzee share 99% of their genes. However, there are important genetic differences for us to be a different species from chimpanzees. Well, the change of a single nitrogenous base and differentiates the gene of a chimpanzee from the gene of a human.
Learn more about gene in: https://brainly.com/question/787658