2 Describe an advantage and a limitation to tracing ancestry

2. Describe an advantage and a limitation to tracing ancestry with both types of DNA.

Solution

The tracing of ancestral origins using mitochondrial DNA, Y-DNA & autosomal DNA is advantageous to know about the historical evolutionary aspects of humans from thousands of years based on short tandem repeats, radioactive labeling & based on single nucleotide polymorphism. This Genetic genealogy is advantageous to unravel familial relationships but has ethical and moral limitations when examining prenatal ancestral tracing& the information about the ancestral DNA is limited to reveal about the inheritance pattern