The Journey of our DNA

The journey of our DNA began some 200,000 years ago when a small group of modern diverse humans set course to colonize the world. Over the slow migration of 100,000's of years those early ancestors spread their diverse DNA throughout the world. Only a handful of people carrying their genetic markers walked out of Africa and then to all other lands of the world. These early humans were hunters and gatherers who were in Europe 40,000 years ago and crossing into North America 20,000 years later. Scientists are able to know where certain groups of people come from by studying different parts of our DNA. All humans have 99.9% identical DNA through out the world. The difference is .1% and is responsible for all our differences. The fathers ancestry can be tracked through the Y chromosome. In the breaking apart of these we can see that all males around the globe share similar 'base' DNA patterns of African males. From then new mutations occur adding on top of the first ones to create ethnic diversity we see in all people today. The mothers history can be found from the mitochondrial which is passes from mother to child. Using both the mother and father history, genetic patterns can be found telling where and when a certain group of people migrated around the planet.