Customer Service is our #1 Priority! We take pride in providing services around the clock for U.S. citizens who need a passport fast. We provide this excellence in service by allowing you to access a passport specialist over the phone.
In the process, the nucleus of an egg is inserted into the cytoplasm of an egg from a donor female which has had its nucleus removed, but still contains the donor female's mtDNA. The composite egg is then fertilized with the male's sperm.
mtDNA for Genealogy. 1  Both Males and Females can take this test. 2  Females carry a specific DNA material that is useful in genealogy called the mitochondria, or mtDNA. This is the material that surrounds the chromosomes. 3  The mtDNA is passed from a mother to her children, essentially unchanged.