Genealogical DNA testing is used to determine your family history, ancestral make-up or the country of origin.
What Is DNA?
Everyone’s DNA structure is unique and it is formed by 46 chromosomes at the time of conception. It may similar for identical twins but not for anyone else. Once formed, it won’t change throughout the life. Each individual carries a special genetic molecule called as mitochondrial DNA and Maternity DNA test (mtDNA) which is inherited entirely from mother’s side. DNA test contains an analysis of mtDNA or Y-chromosome which is exclusively inherited from a biological father in case of a male child.
What Is Genealogical Testing?
A genealogical DNA test inspects the nucleotides at specific locations for genetic genealogy purposes on a person's DNA. It is not carried out to collect informative medical value nor a genetic disease or disorder. It is meant to provide only genealogical or personal ancestry information.
It is carried out using cheek swab rather than a blood sample. Cheek swab tests results are accurate as it would be taken through a blood sample.
What Can Genealogical Testing Do?
It is used to discover the paternal line origin by analyzing genetic markers. It is also used to discover maternal origin using mitochondrial markers. Genealogical DNA testing is generally carried out to determine your family history whether your ancestry comes from different continental level such as European, African, Asian, etc.
If anyone is interested to find out recessive gene variants for blue eyes you carry, your DNA can be tested for various gene variants. It will give you probability whether there are weak or strong chances to have blue eyes children.
If you are carrying out genealogical DNA testing, it would be recommended to check the testing laboratory whether it is accredited to provide results as per recognized standards at international level. If you want the most accurate results for genealogical DNA testing to determine your family history, choose AABB accredited DNA testing companies.