DNA Testing

How does DNA Testing work?

This short video provides information on how DNA testing works. Also, you can read how it works here:

DNA stands for deoxyribonucleic acid. It is the genetic material found inside a cell. Also, DNA is very fine and tightly coiled into structures called Chromosomes. Each cell contains 46 chromosomes.

22 of these are pairs which are almost identical. The remaining two are the X and Y chromosomes which determine the sex of an individual. Women have two X chromosomes and men have one X and one Y.

If the DNA was taken from a single cell and unwound, it would stretch to a whole meter in length. It is estimated, that if this was done for all the DNA, in all the cells of one body, there would be enough DNA to stretch all the way to the moon and back – TWICE! Amazing if you consider this molecule is too small to be seen by the naked eye.

Your DNA is unique

Your DNA is unique to you, just like a fingerprint. The only people in the world who share identical DNA are identical twins, because they began life as a single egg that split in their mother’s womb. The fact that they share identical DNA is the reason they look identical.

Small portions of the DNA are called Alleles. When a scientist looks at a piece of DNA, they can analyse the alleles they find. We identify the alleles and give them a unique number. These numbers represent a person’s DNA profile.

At each location on the DNA molecule, a person has two alleles. Therefore, when looking at a person’s DNA profile, you will see two numbers for each part of the DNA analysed.

So how do we analyse DNA for relationship tests?

At the point of conception, a child’s DNA is formed. Half of the DNA comes from the mother (in the egg) and half comes from the father (in the sperm). Therefore, when we look at a child’s DNA profile, one of the numbers at each of the locations, will match one of the numbers at the same location for each biological parent.

In other words, half the alleles (the numbers) will match exactly to the DNA of the biological mother and the other half will match exactly to the biological father.

When testing other relationships such as potential siblings, we would not expect a match at all locations. This test works on the fact that biologically related individuals will have more DNA in common than those that are unrelated.

When you get your DNA test results, we explain all of this in your report package. Our team is also on hand to answer any questions you might have.

How is DNA Collected?

An identical copy of a person’s DNA is kept inside all the cells of that person’s body. Therefore, the DNA inside a blood sample is identical to the DNA inside a cheek cell. By rubbing a mouth swab on the inside of the cheek, we obtain cells without the need for painful blood samples being taken. This is much easier for the clients and especially for any young children involved.

The DNA from these cheek cells is easily isolated and is then ready for testing. This process is just as accurate as using blood samples. We can use forensic samples as a source of DNA, but only in certain circumstances.

Check out this short video that demonstrates how DNA mouth swabs should be collected.

What DNA Tests are available?

  • Paternity DNA Test is used to establish the biological father of a child. Also, we use paternity test results for both legal or peace of mind purposes.
  • Maternity DNA Test is used to establish the biological mother of a child. Also, legal and peace of mind options are available for this test.
  • The Sibling DNA Test establishes a biological relationship between potential siblings. Also, this includes whether they could be full or half siblings, or unrelated.
  • The Grandparent DNA Test can determine the biological grandparents of a child. Also, we can perform single or duo grandparent testing to improve accuracy.
  • Twin DNA Testing, or Zygosity testing, is a type of DNA test to determine if twins are identical or not.
  • Uncle DNA Relationship Testing establishes a biological relationship between a potential uncle and niece/nephew.
  • Aunt Relationship DNA Testing can determine a possible biological relationship between an aunt and a niece/nephew.

Why choose DNA Clinics for your DNA Test?

Since 2005, DNA Clinics have been providing clinical services in the UK. During this time, the service has evolved to meet the precise needs of the test participants. As a result, we provide one of the most trusted genetic relationship services in the country. So much so that we are the only company to sell three test kits with Boots. This includes the Paternity test, Sibling and Grandparent Tests.

A dedicated Case Manager throughout the process

We will help you choose the right DNA test that will provide the answers you need. Your Case Manager is on hand to provide support and advice during and after. Also, our Case Managers all have a medical science background. As a result, we can assure you of the best possible advice and answer any technical questions you may have.

Choice of legal or personal information DNA Tests

Our accredited *Legal DNA Testing service is available for a range of purposes. This includes immigration, child custody / maintenance and disputed Wills. Or, we offer peace of mind DNA tests for personal use only. This is a convenient and inexpensive option if a test is not required for legal purposes.

*Except section 20 court directed cases.