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What you should know about DNA paternity testing

On Behalf of | Feb 23, 2023 | Paternity

If Florida men have any questions about whether they are a father of a child, a DNA paternity test can help. This type of testing is helpful when a woman surprises a man with news about having their child or when a man has believed for a period of time that they are. Here is how these tests work.

Understanding DNA paternity tests

DNA tests use deoxyribonucleic acid, genetic material inherited from both a mother and father. When a man needs to take a DNA test to establish whether he is the biological father of a child, a swab of his DNA is taken, usually from the inside of the cheek. In some cases, DNA paternity tests are done using a blood sample from both the man and the child at a medical facility. Whichever way a sample is obtained, it’s sent to a lab for analysis.

When a DNA sample is analyzed by a lab, a technician runs tests that involve DNA sequencing to explore any genetic matches. If a match comes up, it establishes paternity.

DNA paternity tests during pregnancy

Some DNA tests are used during pregnancy. If a man questions whether he is the father of a woman’s unborn child, a noninvasive prenatal paternity test can be done in the first trimester. The man’s DNA sample is compared to fetal DNA in the woman’s blood sample.

Chorionic villus sampling uses a tissue sample from the placenta during the 10th to 13th week of pregnancy. The sample is compared with the woman’s and the man’s DNA.

An amniocentesis test can also be used in paternity testing. A needle is used to draw amniotic fluid between the 15th and 20th week of pregnancy. The sample is compared with a DNA sample from the mother and the man.

Paternity testing can put parents’ minds at ease so that they can enjoy raising their children. A positive result can also give the father parental rights to the child in question.