Posted on | October 8, 2012 | Comments Off
Up until recently there were just two methods for extracting fetal DNA from a pregnant woman. Both these two methods are considered risky to some extent or other and moreover, both have side effects. Let’s take a brief look at each one to understand more:
Chorionic Villus sampling: this prenatal DNA test is carried out at around 11 weeks of pregnancy. The OBGYN overseeing the procedure can either extract samples of fetal tissue by inserting a catheter through the vagina or by inserting a needle through the abdomen. The tissue collect is specifically known as chorionic villus.
Amniocentesis: This test in pregnancy is carried out at around 13 weeks of pregnancy. To be able to extract a sample of fetal DNA the OBGYN must insert a needle through the pregnancy belly and extract around 20ML of amniotic fluid (the liquid which surrounds the unborn baby in the embryonic sac).
The risk of miscarriage is slightly higher with chorionic villus sampling that with amniocentesis. Besides this risk (although very small), the tests have side effects which can be unpleasant. Fever, chills and soreness are not uncommon. Luckily, the past decade has seen the emergence of non invasive tests which have none of the above risks or side effects.
Non Invasive prenatal testing
Fetal DNA for this test is extracted from maternal blood. There is no need to go anywhere near the womb and blood samples for this test are in fact collected just like any other blood draw- usually from the vein. The test can also be carried out at only 10 weeks of pregnancy, thus earlier than both amniocentesis and chorionic villus sampling.
Posted on | September 10, 2012 | Comments Off
Watch the video and then click any of the links below to unlock the entry form
If you are looking for a paternity test, this is the chance to do it for free! Enter our competition to win a FREE paternity test worth $119. All you have to do to be eligible for the free test is to action one of the buttons highlighted by the red arrows below the video. You will then be prompted to enter your own personal details for the draw.
The competition will run until the 31st October and is valid for a paternity test involving one father and child. Once the winner is picked they will be notified via email. The sample collection kit will be sent to the address provided.
ITS THAT SIMPLE!
If however you require a paternity test sooner, then we offer one of the LOWEST prices in the industry. Visit our paternity test page for more information.
homeDNAdirect is an international provider of DNA testing services – all our testing is performed through an AABB and ISO17025 accredited laboratory for your complete peace of mind!
* All personal information obtained will not be used for any marketing purposes or provided to related and unrelated third party organisations.
Posted on | March 5, 2012 | Comments Off
Why not do a boy or girl baby gender predictor test to find out the sex of your baby? Will you opt for one of the many at-home tests which might include the rather foul smelling cabbage test or a rather pesky and potentially toxic baby gender test that uses concentrated, caustic, sodium hydroxide (marketed as the brand Drano)?
You could steer clear of any such bogus baby gender tests. As fun, smokey and colourful as they might be, they will only provide you with a correct result by chance. To find out if you will have a baby boy or baby girl, you should take a DNA test. This is far more likely to yield a correct result. Scientists have invested many years of research into providing baby gender predictor guides which are almost 100% reliable. The baby gender tests are carried out in laboratories using highly sophisticated equipment- if you plan the baby bedroom colour schemes, clothes and names depending on the outcome of a gender test, you want to be sure that the outcome is the correct one.
Online you will also likely stumble across boy or girl baby gender predictor tests that are provided by companies that provide a special home test kit with in-situ results. These companies have “invented” baby gender tests which are highly convenient and user friendly. The tests require you to pee in cup and then compare the colour change to a chart. One colour change indicate a boy and another a girl.
Apparently, male or females hormones (oestrogen or testosterone?) find their way into the maternal urine and can be detected by this test.
Finally you might want to opt for the scientific gender predictor test. This type of test will definitely be more costly than a bottle of Drain cleaner and far more expensive than a cabbage. However, since it is a DNA based test, you can be sure that the results will give you the exact outcome of the gender of the baby.
Posted on | November 22, 2011 | 1 Comment
Yeater, who claims be Justin’s fan has alleged that she went to watch his concert in Los Angeles last October where she met him backstage. According to her, there was mutual admiration and infatuation among the two and Justin pursued her to come to a quiet place where they can spend some time alone. The long interaction between them apparently lead to the birth of Yeater’s 4-month-old son.
2. Justin’s take
Posted on | August 3, 2011 | Comments Off
Infidelity testing is a DNA test that can help you draw conclusions and answer questions about the faithfulness of your partner. Infidelity DNA testing relies on testing the stains found on a garment or any items and seeks to determine either or both of the following:
You might want the laboratory to determine whether there is just a single DNA profile or more than one DNA profile. The multiple gender profile DNA test for infidelity will not only tell you that there are 2 different DNA profiles present in the stain but also tell you whether the profiles are male or female. One would be surprised with the results of such a test.
The second option is to actually provide a comparison DNA sample for the infidelity test. For example, once the lab confirms the presence of female DNA on you and your husband’s bed linen, you might wish to confirm whether the female profile found in the stain actually belongs to you or another woman.
Of course even results of a paternity test can sometimes spell out marital infidelity. However, a paternity test is not an infidelity test as the aim of an infidelity test and the aim of a paternity test are entirely two different kettles of fish.
Can I use hair for a DNA test?
DNA testing with hair is only viable if the hair root is still attached. In most cases, any naturally shed hair you find lying around the house, perhaps between the bristles of a brush or in a shower, will not have the root attached. If you have found hair, you will first need to examine it really well to make sure it has the follicle attached- if the hair does not, then it is useless for this type of test. The DNA testing company will also require a minimum number of hairs- usually between 4-6 hairs.
It always makes sense being as sure as possible before making any rash conclusions that may lead to marital break ups. In one particular case, a client was quick at accusing her husband of marital infidelity with just the results of the multiple gender test. The Results in fact, did show a male and female DNA profile. Immediately, she confronted her husband with the results of the DNA test. In the mean time, to further support her claims against her husband, she sent a DNA sample of her own to compare with the female profile already found in the stain: the results confirmed the her DNA profile matched the female profile found in the stain.
Moral of the story, exhausted all possibilities with DNA infidelity testing before jumping to any conclusions.
Posted on | June 9, 2011 | 2 Comments
It is highly unusual to encounter any issues with your paternity test result however, these may sometimes occur. Paternity testing is extremely accurate and even when any of the below issues do occur, do not worry, the issue of paternity can always be solved.
Well the issue of paternity can always be solved so as long as there are no identical twins involved and so as you are actually carrying out a paternity DNA test with the alleged father, child and mother’s samples. If the alleged fathers are identical twins, their DNA profiles will be exactly the same and thus, either of them could be the biological father- scientists cannot determine which twin. If you are doing a test to solve the issue of paternity but are doing a relationship DNA test (perhaps the father does not want to be tested or is dead), you may not have a conclusive answer to the issue especially as the biological relationship between people taking part gets more distant.
Paternity test Results: here are some issues
My DNA sample has failed: if you have submitted oral swabs (saliva DNA samples) there are the following possibilities. The DNA sample may have been contaminated.
- Did you wait for an hour after eating or drinking before sample collection time?
- Did you smoke anything?
- Did you rub it in the right places and for long enough; the inner cheek and under the tongue?
- Did you allow the swab to dry? If you didn’t, it may have moulded.
- Did you use both the oral swabs provided?
- Could the swabs have been tampered with?
I have not received my DNA test result: how did you agree on receiving the results? Normally DNA test results are sent by email so if you are expecting them by post and have not agreed on this, you may well keep waiting whilst all along they have been lying in your inbox.
Are you the person who has ordered the test? Not all test participants necessarily get a copy of the result. Results are sent to the person who orders and signs for the test. If other parties want a copy, they will have to all agree on this with the company providing the DNA test.
Above are just some points you may want to consider when doing your paternity DNA test. Always be careful to read all instructions and follow the few basic guidelines and all will go very smoothly. Do worry about issues relating to your paternity test result until these arise.
Posted on | April 20, 2011 | Comments Off
Genetic testing to know you predisposition to Alzheimer’s is today possible. Alzheimer’s is a form of dementia. As time goes by the disease progressively gets worse drastically reducing brain function. Alzheimer’s disease leads to death. Generally, people are far more open to genetic testing for predisposition to cancer than to genetic testing for Alzheimer’s.
What are the symptoms of Alzheimer’s?
The symptoms are several; at first, like most diseases, Alzheimer’s is mild and moreover, difficult to diagnose. The following are some of the most common symptoms experiences by someone with Alzheimer’s:
- Loss of memory
- Problems with language, articulating and thinking clearly
- Changes in personality
Whilst these symptoms appear to not be all that bad, as the disease progresses some Alzheimer sufferers end up being bed ridden, unable to speak, swallow, and recognize their closet family members.
If you have someone in the family who has had the illness, you are more likely to develop Alzheimer’s. However, whilst old people do often forget things as memory function does decrease with old age, they most likely do not suffer from Alzheimer’s. Alzheimer’s is not part of the ageing process. Genetic tests have evolved immensely. A DNA test can tell you how likely you are of developing this illness as well as many others; these tests are referred to as genetic predisposition DNA tests or simply genetic health tests.
Alzheimer’s has been shown to have a strong genetic component all the stronger in those who have had a blood relative suffering from the illness. Alzheimer’s cannot be cured. Once someone is affect medication can slow the progress of the diseases but it cannot stop it. This makes many people aversive towards genetic testing for Alzheimer’s. They would rather not know.
Posted on | March 17, 2011 | 1 Comment
DNA testing for ancestry has really caught on as most of us wish to know more about who our ancestors were and what part of the world they originated from.
This DNA ancestry test is used to give you a sound general overview of your ancestor’s migration patterns and origins. It essentially helps you know your history and takes you back thousands of years. This is often referred to as your geogenetic heritage and it is all written in your genetic makeup.
The ancestral origin test works by comparing the relevant parts of your DNA profile to a very extensive database. The database contains information about a number of studied anthropological groups, the regions they came from and populations. You must bear in mind, that the formal geographical boundaries we know today, the countries and regions and the world map was very different thousands of years ago to how we know it today. The number of anthropological groups and populations and the extent of genetic information in the database depend on the DNA testing company you choose.
Anthropology forms part of the basis for this test- it is essentially the study of humanity and its origins.
The result will provide a high resolution map; your genetic matches will be plotted on this map and will show how strongly related your genes are to certain groups. You can thus, know if your ancestors came from northern Africa or Western Europe or other parts of the globe and their migration patterns. You will also get a very detailed description of all the groups and information as relevant to your ancestry.
DNA ancestry testing makes for a great gift or simply a treat to yourself should you want to learn more about your ancestors.
Posted on | February 17, 2011 | Comments Off
In cases where one needs a paternity test to be able to pursue matters in a court of law, they will need to opt for a legal paternity test. This type of test is done in cases when one is absolutely certain that a legal case will ensue which may involve issues of visitation, child custody and maintenance.
Legal testing is not recommended when one simply fosters a doubt regarding who may be the father- in such cases it is a home DNA paternity test which is recommended.
How is the legal paternity test carried out?
The legal DNA paternity test (sometimes called a court admissible paternity test) involves what is known as a “chain of custody”. This “chain of custody” is essentially a process for collecting DNA samples that is overlooked by a neutral third party. This third party person is known as a sampler and is often a medical doctor or qualified nurse. What the sampler will be responsible for is to physically collect the DNA samples from all the people involved and authenticate them- they will need to confirm who the samples came from.
Test participants will need to provide identification and passport photos. The sampler will need to sign the photos in order to show that the samples for the legal paternity test have in fact been taken from the people who should genuinely be involved in the test.
A bit more about court admissible paternity testing
The DNA testing kit necessary for the test is normally sent to the person who purchases the test. An appointment will be set up with the sampler and the people involved in the test will need to present themselves on the day with the test kit. They will need the necessary documents of identification and for infants or children copies of their birth certificates.
After the sampler has collected the DNA and verified the samples, he or she will seal off the kit and send it for testing. The test results will then be sent to the person who has requested the test.
In the vast majority of cases, the sampler’s fee is not included in the cost of the test but this is normally the cost of a standard medical visit in your country.
Give or take, legal paternity testing follows much the same procedure or “chain of custody” from country to country although there may be small variations.
Posted on | January 11, 2011 | Comments Off
Ozzy Osbourne has had a DNA test to unfold the mysteries of his ancestor’s origins. The heavy metal singer has sold over 100 million records worldwide and goes down as one of the biggest names in the world of heavy metal. He is known for his eccentricities, his extensive drug use and alcohol abuse as well as his comparatively quasi-perfect health.
Using state of the art technology and a sample of Ozzy’s blood taken from his home in Buckinghamshire, England, an ancestry test was carried out to trace the origins of the heavy metal star. Not surprisingly to many people, given Ozzy’s disposition and demeanor is that he is a descendant of the Neanderthal man. The DNA test gave even more interesting information; perhaps part of Ozzy’s DNA comes from the Neanderthal cave man but other parts of his DNA are traceable to a very different source. In fact, DNA testing has shown he is a distant relative of Tsar Nicholas II and King George I. Much interest has been sparked and many people are now doing ancestry DNA tests in order to find out more about their ancestors.
Ozzy: Alcohol Consumption
It cannot be denied- Ozzy has over done it more than a few times on the alcohol, in fact, a life style akin to that of a dipsomaniac. The DNA test showed that Ozzy carried a special variation a gene that the body uses to break down alcohol. This would explain how the star has survived binging on a couple of bottles of cognac in a night. This gene, ADH4, makes his body very able, in fact far more able than the average human body of breaking alcohol down, but also makes him highly addicted to the liquid.
Genome mapping, DNA testing and DNA testing for ancestry are all inter-related and of growing interest even to the average person such as me or you. Ozzy Osbourne’s DNA test has proved indeed fun and interesting.keep looking »