Written by Jazelyn M. Salvador, MSc; Ma. Corazon de Ungria, PhD
STAR SCIENCE, Philippine Star
Y-chromosome DNA typing is the most useful test for male identification since this chromosome is found only in males, and is passed from fathers to sons. Hence, paternal grandfathers, fathers, sons and their male relatives along an uninterrupted paternal line share the same Y chromosome. In fact, one can trace one’s paternal ancestors through many generations using Y chromosome data. Results of Y chromosome studies of different populations are consistent with the identified African origin of humankind. The question of human origin has been the subject of many studies and featured in many exhibits such as those found at the Cradle of Humankind Museum, a UNESCO World Heritage Site located in the Gauteng province in South Africa (http://www.gauteng.net/cradleofhumankind). Y-DNA typing data, consistent with archaeological evidence, has contributed to the concept of the “African Adam,” and show that all anatomically modern humans originated from a common ancestor that lived in Africa.