Genetic Testing Kit

Posted by admin on May 30th, 2010 | 0 comments

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Welcome to Genetic Testing Kit. Genetic Testing Kit gathers together informative genetic testing articles, educational genetic testing videos, and lively chatter and conversation about genetic DNA testing in general.

Genetic testing allows the genetic predispositions to inherit traits and diseases. Genetic testing kits can also be used to determine a child’s paternity (genetic father or mother) or a person’s ancestry.

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Normally, every person carries two copies of every gene, one inherited from their mother, one inherited from their father. The human genome is believed to contain around 20,000 – 25,000 genes.

Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person’s chance of developing or passing on a genetic disorder. Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.

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Elements of DNA Paternity Testing that Affect the Costs

Posted by admin on Aug 30th, 2010 | 0 comments

Disputed biological relationships are generally resolved by DNA testing, and while paternity testing is by far the most common form of relationship proved by DNA analysis it is not the only one. This, and several other factors that explain the difference in cost between individual tests, are explained here.

1. The Quality of the Testing Procedure

Testing procedures vary according to requirements and to the needs of those ordering them. It is a general rule that the more basic the test requested, the lower the price will be. A standard test will normally involve the analysis of 16 genetic loci, although cheaper tests can be carried out using fewer than that. The standard of the test kit will also have an implication on the cost: a laboratory-prepared kit will cost less than a Promega validated kit for example. As the price is reduced, the quality of the test reduces accordingly, as does the certainty of the result.

2. Number of Participating Subjects

Testing is not necessarily carried out on only one person, and there are cases where others have to be tested. Where siblings or even twins are involved, the cost will be higher, and the same is true where more than one potential father has to be tested in a paternity dispute. It is not uncommon for the mother’s test to be carried out free of charge, but otherwise the more people that are tested the higher the cost.

3. The Time Factor Involved

DNA testing takes time, particularly when there is more than one sample involved. If the time factor is important and the results are required within 48 hours, or even the next day, the price will be higher. This additional cost can, in many cases, double the overall cost of the test.

4. The Location of the DNA Test

Like any other product the costing of DNA Paternity Testing is influenced by market forces. The prices charged in the USA are relatively low compared to those elsewhere because such testing is fairly common with Americans. Not only does the sheer volume of tests drive the price down through economy of scale, but this popularity breeds competition which in itself leads to highly competitive pricing policies.

5. The Nature of the Sample Analyzed and the Complexity of the Test

The samples used for testing can take many forms, and some are more difficult to analyze than others. Blood samples, hair, skin and oral or Buccal swabs are common forms of sample, and because hair, for example, involves more sample preparation and analysis that an oral swab wipe, it will consequently cost more to analyze. The type of test also presents significant cost implications. Hence, a paternity test, that is easier to carry out than a sibling test, will be priced the lower of the two, assuming other factors being equal.

6. The Legal Standing of the Test

If the results of the test have to stand up in court it has to be carried out under strictly controlled conditions. A private test, carried out with the objective of setting people’s minds at rest, need not be strictly controlled. Some of the requirements of a legal test include the need for the sampling to be notarized by a third party to ensure that the sample is that of the person identified, and that the test kit be transported to the lab by secure courier. Not only has that, but the testing kit itself had to be of a higher quality and more comprehensive than that for an ordinary or regular test. All of this has cost implications.

As should now be obvious, the prices charged for DNA Paternity Testing can vary widely according to a number of variables. It is very important, therefore, that you are aware of the cost beforehand, and that prior to arranging a test you get a firm indication of the price you will have to pay.

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Dna Testing Definitions

Posted by admin on Aug 24th, 2010 | 0 comments

DNA testing and the whole process that goes with it can be confusing for anyone, particularly if you’re never experienced the process before. It is packed full of complicated scientific jargon that makes very little sense to most people and requires an knowledge of genetics to even remotely comprehend. Luckily, we’ve compiled this basic list of DNA testing definitions to help keep you on track throughout it all:

DNA: Deoxyribonucleic acid, or DNA, is the acid within each and every one of our cells detailing everything about the way in which our bodies will function and appear. Think of DNA as the plans to your body – the blueprint to how you’re going to work. Inherited in equal measure from both the mother and the father, no two persons’ DNA is alike, making it ideal for identifying criminals from crime scene DNA evidence and for determining paternity in contentious situations.

Avuncular Test: The testing of the alleged father’s relatives alongside the sample from the child in question in determining paternity. This can be used where the father is not present or not available to give a sample for DNA testing, and can help determine (albeit with lesser accuracy) whether or not particular samples are genetically related. It is nevertheless desirable to conduct all DNA testing with the father having previously been sampled to ensure more accurate results.

Paternity Test: The most common form of DNA testing, paternity testing, establishes whether or not an alleged father does indeed share a genetic relationship with the child in question. By matching up the DNA of the mother, the father and the child in question it is possible to identify parentage by looking for a 50/50 split in genetic material from both parents.

Oral Swab: The most effective and easiest way of collecting a DNA sample. Achieved by simply scraping the swab against the inside of the cheek in order to glean genetic material from the cells of the cheeks, before being sealed and sent off to the lab for testing at which point it can be matched with additional samples from the other parties involved. Oral swabs are preferred to other samples because they are comparatively easier to read and compare.

Chromosome: The location of the genetic material (that is to say, the DNA) within each cell, in which there are 23 pairs of chromosomes in total. The male chromosomal partnership is identified as X and Y, whereas females do not possess this distinct Y chromosome. Therefore it is possible to test male relationships of a genetic nature through the Y chromosome which in itself very infrequently mutates as it is passed between father and son.

DNA Testing: The overall process by which DNA samples are compared in order to identify a particular individual in criminal, medical or legal circumstances, or purely out of curiosity. DNA testing can be used to determine paternity, or place a crime suspect at the murder scene, and has been proven to be highly effective in boosting conviction rates for serious criminal offences.

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