Does embryological data have advantage or disadvantage over dna evidence

The embryological data have advantage over DNA evidence.

Explanation:

Embryology is the study of earliest phase of any organism i.e development and formation of embryos.The embryological data is very important because it give the proper information about the mechanisms that have both normal and abnormal development.Similarly the embryological data also helps in studying the evolution over the generations. The overall organization, its process of development can be properly known by embryology over DNA evidence.

Nation of conflicting ethnic groups