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The Science behind the Gender DNA Test.

The Science behind the Gender Prediction Test

This gender prediction test relies on DNA analysis. Scientists have long known that a pregnant woman carries small quantities of the unborn child’s DNA in her blood and urine. The challenge was for scientists to be able to isolate and separate the child’s DNA from that of the mother from a simple blood sample or urine sample. Today, this has been achieved and it now possible to carry out a baby gender test as early as 9 weeks of pregnancy.

Fetal cells die; these cells find their way into the mother’s blood stream through the placental wall. The maternal blood gets filtered through the kidney. The fetal DNA fragments get excreted out of the mother’s body into her urine. As early as 9 weeks of pregnancy, it is possible for our scientists to isolate the DNA of the baby from the mother’s urine and tell you the sex of your child.

Kidneys and Urine production

We have two kidneys which are about the size of a small fist. They are located on either side of our spine and are considered vital organs. The kidney’s job is to filter the waste from the blood; the waste is then passed out as urine. Ureters are tubes which carry the waste and connect the kidneys to the bladder. The bladder is used for temporary storage of urine until we actually micturate (urinate). As established, fetal DNA can be found in the mother’s urine. The amniotic sac which surrounds the unborn child is filled with urine and fetal DNA. The DNA makes its way through the placenta into the mother’s blood stream. When the mother’s urine gets filtered through the kidneys, the fetal DNA is excreted as well.

How much urine is required for the test?

The amount of urine required is between 50-100 ml. Using a scientific DNA testing procedure called polymerase chain reaction (PCR) scientists are able to work with tiny quantities of DNA; taking just a minute quantity of DNA and using an enzyme known as DNA polymerase,  scientists are able to make hundreds of copies with which they can work. With the gender test using urine, scientists will analyze the mother’s urine to detect the presence of male DNA. By exclusion, if no male DNA is found, the mother is excepting a baby girl.

Visit the sample collection information for more information how to collect the urine sample.

Is it going to be boy or girl? How can scientists know?

The test bases itself upon detecting the presence of the Y chromosome in the mother’s blood. It is important to realize that only males carry the Y chromosome, which they inherit from their father. In fact, males have 23 pairs of XY chromosomes and females have 23 pairs of XX chromosome. It is clear that females do not carry any Y chromosomes. The presence of Y chromosomes in the mother’s urine clearly indicates that the unborn child will be a male. If no Y chromosome is detected, the unborn child is female. The results of the test are therefore highly accurate, with a success rate of 99%.

Baby gender prediction tests are quick and accurate. Contact Us or Have Us call you for more information about this test.

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