How does the DNA testing process work?
The cheek cell samples are taken to our laboratory where they are treated in order to release the DNA coding from the cells. The DNA is then introduced to an enzyme that duplicates the DNA, producing millions of copies ready for analysis. The DNA profile is made up of STR (Short Tandem Repeat) markers. As a child inherits half of his or her DNA from each parent, every STR marker in the child’s profile should be present in either the mother’s or father’s DNA. Our laboratory will test at least 16 STR markers to determine paternity. As part of our commitment to accuracy, all our DNA tests are run twice and the results double-checked.
• DNA samples from the appropriate persons are taken. To ascertain paternity, samples must be taken from the father, the child and preferably the mother also. The easiest and most common way to extract a suitable amount of DNA is by swabbing the inside of a cheek • Documentation must be signed by the owners of the DNA samples, giving permission to use their samples for the purpose of DNA testing • The cheek cells are processed in a laboratory so that the DNA is extracted from these cells for testing • When exposed to a special enzyme the DNA multiplies millions of times ready to be tested • The DNA of the child is compared to that of the parent(s). Specific sections of a persons DNA are also found in the DNA of either parent • An analysis of this DNA involves a satisfactory number of these sections to be compared • This process should be repeated at least once and double checked before the results are confirmed Can DNA Testing be done at home? Nowadays, yes, you can now use at home DNA
