The Phillips DNA Project News DNAeXplained - Genetic Genealogy Details Category: Latest Created: Thursday, 19 July 2012 12:03 Last Updated: Thursday, 19 July 2012 12:03 Published: Thursday, 19 July 2012 12:03 Written by Nancy Kiser Here is a link to a new blog by Roberta Estes that goes into a detailed discussion of the evolution of mitochondrial DNA testing.