Monday, 19 June 2017

Paternity DNA test to determine conclusive relationship!

DNA testing is the most accurate and advanced technology till now to determine maternity or paternity test. A child inherits nearly half of the genes from both parents. A standard paternity test is used to prove father-child relationship conclusively. If the alleged father is not related to the child biologically then paternity test result probability should be 0% and more than 99.9% if he is biologically related to the child.

If the mother of the child is willing to participate in the test, then it helps to exclude half of the DNA of child inherited from her. It makes data analysis easier. But it is not essential if the mother is unable to participate, a motherless paternity test can be carried out which is also conclusive and equally accurate.

The legal paternity test follows a strict chain of procedures to make it legally admissible. It is used as an evidence for inheritance, child support, immigration, adoption, or social welfare benefits. Some of the parents choose prenatal paternity test that is conducted before the birth of the child. The non-invasive prenatal paternity test is conducted through mother’s blood sample or buccal swab sample with 99.99% accuracy to verify paternity of developing the child.

The non-invasive prenatal paternity test can be conducted as early at 9 weeks from gestation and very safe due to a non-invasive method. Some of the parents go for paternity DNA test just for the peace of mind that is called standard paternity test. A standard paternity test can be carried out at home using home sampling collection as it doesn’t require a strict chain of procedures as needed in a legal and Confidential paternity test.

Tuesday, 6 June 2017

DNA testing to determine your family history

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.