How Accurate Are DNA Tests?

Posted by Emily Harry on March 7th, 2023

Whether you're searching for a DNA testing service or you've received unexpected test results, you'll find this article useful for finding out more about DNA test accuracy.

The Accuracy of DNA Tests

Currently, most DNA tests are genotyping tests. According to Brandon Colby, MD, Medical Geneticist & Preventive Medicine Expert, "Genotyping is the most commonly sold type of DNA test.".

It is possible to obtain data on up to two million data points by performing genetic genotyping tests. There is an enormous amount of useful information you can get from these tests about almost everything (ancestry, health, medication side effects, wellness, nutrition, fitness, sleep, etc.). A personalized health plan can also be developed with this type of testing." 

Factors Influencing the Accuracy of DNA Tests

Despite the accuracy of DNA tests, there are some factors that can decrease the accuracy of the tests that consumers must be aware of when shopping for this service. The following are those factors to help people find a Cheap DNA Test Spring Valley NV for their needs.   

DNA Testing Company

The field of genetics has come a long way since Mendel's pea experiments in the early 20th century. With the Human Genome Project, we were able to discover the full sequence of the DNA in 2003, revealing more than we ever thought possible about our genes. It was during the 1980s that we gained a deeper understanding of gene mutations and how they contribute to inherited diseases. This has led us to profound knowledge about inheritance, evolution, and diseases. 

In response to increased information, the demand for genetic testing grew tremendously, sparking a genetic testing industry. Advancements in genomics have spurred the growth of DNA testing companies worldwide. DNA testing costs have been reduced to compete. 

Most DNA testing companies market legit DNA tests, but illegitimate ones exist as well and should be avoided when asking how accurate is DNA testing. 

User Error

The use of quality DNA tests isn’t the only factor standing in the way of accuracy; there are also user errors that can affect test results. The most common user errors that occur are:

• Insufficient DNA sample
• Sample of tainted DNA

When users spit into a test tube, they often get an inadequate DNA sample. In many DNA testing companies, such as 23andMe, users must spit into a test tube before receiving their DNA sample. If too little saliva is submitted, inaccurate results will often be returned or a message that the lab was unable to process the sample. 

DNA samples that are tainted are those that contain more than they should in the saliva or cheek swabs. The DNA test kit can be tainted by food particles, which is why it is imperative to always read and follow the instructions to make sure you get the most accurate results. 

Paternity Test Accuracy 

During the paternity DNA testing process, two DNA samples will be submitted. One sample will be compared to the other to determine if they are related. 

It is common for people to submit the DNA of another individual as paternity DNA tests can serve legal purposes and cause emotional upheaval. A mother may, for example, submit DNA from the biological father of her child under the name of another man in order to prove his paternity. 

There are some who argue that DNA tests are inaccurate, but that is not true. The tests themselves are not inaccurate, it is the DNA samples that are inaccurate. 

The Accuracy of DNA Analysis

Test results of DNA are different from analysis results of DNA. DNA test results show combinations of letters that can be analyzed. 

The DNA test is often blamed when people look at DNA analysis reports. However, the blame should be placed on the report, not the DNA test, when reviewing DNA analysis reports. 

Just as with DNA tests, DNA analysis accuracy depends on the company offering it. Since they have identified the genetic makeup for that information, most DNA test companies specialize in one or two types of analyses, such as health+ancestry. In many cases, these companies are self-serving, and they may produce analysis reports to get users to pay for their services.

To Trust or Not to Trust DNA Tests

You can determine your genetic makeup from DNA tests, assuming you use a reputable DNA testing company. DNA test Lab are accurate if they are performed by a reputable company. 

It is accurate to analyze raw data as long as it is performed by a company that is well-known for delivering accurate results. Researching how the analysis is done is the only way to find out whether a company is one that offers high-quality DNA analysis. 

In order to be certain your results are consistent with the professional's standards, look for DNA testing companies that have geneticists working in their team or leading them. 

When considering DNA tests and their analysis, don't be afraid to ask questions about their accuracy and reliability. This is a service you're paying for, and you deserve to know if you're getting your money's worth.