DNA Kits Explained: What Are They, Why Do I Need Them & What Does It Mean?

DNA testing Kit
Manchester, UK - 19 October, 2021: Coronavirus kit for COVID19, travel test for Day 2, 5 or 8, prepared for being posted. Collection tube with stabilizing solution, swab, all the packaging.

Do you want to learn more about DNA kits? Or maybe you’re wondering if you should get one? Well, here’s everything you need to know!

A genetic test kit is used to collect DNA samples from a person. These tests are used to find ancestry, gender, ethnicity, and even disease risk information. A genetic test kit comes with a collection tube and instructions on how to collect a sample.

In this article, you’ll learn everything you need to know about DNA testing kits.

How do the DNA testing kits work?

The DNA testing kits work by isolating specific regions of DNA from the sample to be tested. The equipment will then amplify these isolated regions using primers designed specifically for each area. This amplification step allows us to see if there are any mutations in the DNA sequence. If there are mutations present, it may indicate that the person has been exposed to something harmful such as radiation, chemicals, drugs, etc. Modifications can also occur naturally during cell division.

Which DNA testing kits should I use?

There are many different types of DNA testing kits out on the market today. Each one works differently, but they all have similar purposes. Here’s an overview of the most popular ones:

Saliva Tests

AmpFlSTR SGM Plus Test Kit – This test detects 13 STR loci and uses fluorescent dyes to detect the presence of alleles at those loci. It is commonly used for paternity testing and genealogical testing.

Forensic-DNA IDENTIFY RFLP PLUS Test – This test detects 15 STR loci and uses radioactive labels to detect the presence of allele peaks at those loci. This test is often used for forensic identification.

Genetic Genealogy DNATest Kit – This test detects 20 STR loci and uses radioisotopes to detect the presence of peak heights at those loci. Genetic genealogy testing is done to find matches between people who share a surname.

iDAT™ SALIVA DNA TEST KIT – This test detects 7 STR loci and uses fluorescence to detect the presence of peaks at those loci; this test is commonly used for paternity and kinship testing.

Blood test Kits

LAVA ampFℓSTR Yfiler® PCR AMPLIFICATION KIT – This test amplifies 11 STR loci and uses capillary electrophoresis to detect the presence of amplified products at those loci. Blood samples are typically collected via finger stick or venipuncture.

MitoPlex™ MPX PLUS SYSTEM – This test detects 12 STR loci and uses gel electrophoresis to determine the presence of amplified products. Blood samples are typically drawn into tubes containing EDTA.

PowerPlex® 21 SYSTEM – This test detects 14 STR loci and uses polyacrylamide gel electrophoresis to determine the presence of peak heights. Blood samples are typically taken via finger stick or venipuncture.

Promega PowerPlex ®16 HS System – This test detects 17 STR loci and uses PAGE to determine the presence of peaks at these loci. Blood samples must be collected in EDTA tubes.

Semen test kits

QIAsymphony DSP® QIAamp® DNA Investigator Kit – This test detects 16 STR loci and uses real-time PCR to determine the presence of alleles. Semen samples are typically collected via masturbation.

BioFire FilmArray™ Respiratory Panel – This test detects ten respiratory pathogens and uses real-time PCR technology to determine the presence of pathogen nucleic acid. Swabs are placed directly into the collection tube.

Cervix/Uterus tests

SurePath® Cervical Cancer Screening Test – This test detects HPV genotypes
6,11,16,18,31,33,35,39,45,51,52,56,58,59,66,68,69,70,73,82,83,84,87, IS39, CP6108, and CP6109. A swab is inserted into the cervix and rotated 360 degrees.

Hair test kit

R&D Systems HairMarker™ DNA Testing Kit – This test detects 9 STR loci and uses PCR amplification followed by capillary electrophoreses to determine the presence of allele peaks. The hair sample can be collected from any part of the body.

Skin test kits

Gentra® Puregene® Tissue Kit – This test detects 8 STR loci and uses lysis buffer to extract DNA from tissue samples. The extracted DNA is then purified using spin columns before being quant.

What is the price of DNA testing kits that are available?

The cost of DNA testing kits varies depending on where they are purchased. Some companies offer free shipping, so you don’t have to worry about paying extra shipping charges. You can also buy DNA testing kits online through various websites. These sites usually sell the kits at discounted prices.

How long does it take to get results back?

It depends on how many markers are tested and what type of analysis is performed. Most DNA testing kits will provide results within two weeks. However, some kits may require up to 4 weeks.

Is there a limit to the number of times I can order a DNA testing kit?

No. There is no limit to the number of DNA testing kits you can order. Many people order multiple kits per year because they want to ensure their DNA profile matches certain ethnic groups. For example, if you’re looking to find out more information about your ancestry, you might want to order several different kits to see which one best fits your needs.

Are there any good online DNA testing sites?

Yes! There are many reputable companies offering DNA testing services online. It’s essential to do research when choosing an online company. Make sure they have been around for a while and have a proven track record. If possible, visit their website and read reviews written by other customers.

Is it possible to get your DNA tested without paying for it?

Yes, it is possible to get your genetic profile tested for free. All you need to do is send in a saliva sample via mail. Then, you’ll receive your report along with instructions on how to use it.

Can you have your DNA tested at home?

You can have your DNA tested at a local lab or even at home. Many labs specialize in providing DNA testing services.

Is it possible to do a DNA test on yourself?

Yes, you can perform a self-test for DNA profiling. Collect a saliva sample and ship it off to a lab. Once the lab receives your selection, they will run tests and return the results to you.

Does DNA testing hurt?

DNA testing doesn’t hurt. Most people feel nothing during the process.

What happens after I submit my DNA sample?

Once you’ve submitted your DNA sample, you’ll receive a letter containing all of your test results.

Are home DNA test kits accurate?

Home DNA testing kits are not 100% accurate. The accuracy rate of home DNA testing kits is approximately 95%. This means that 5% of the time, the results from a home DNA testing kit won’t match those obtained from a traditional lab.

Do DNA testing kits work?

Yes, DNA testing kits work very well. They allow you to learn more about yourself and your family history. When used correctly, DNA testing kits can help you answer questions such as:

• What ethnicity am I?

• How did my ancestors come to live in this country?

• Who was my great-great-grandfather?

• Do I carry genetic diseases?

• Are my children likely to inherit these diseases?

• Is my child likely to become pregnant with Down syndrome or another genetic disease?

Can you mix DNA samples to create a new person?

No. Mixing DNA samples together is illegal. Even though DNA testing kits claim to detect DNA from two separate individuals, mixing them would cause serious problems.


DNA testing kits are becoming increasingly popular. With so many kits available, it’s easy to spend hours researching each option. Before purchasing equipment, however, make sure you understand all the options available. Also, consider whether the equipment you choose is right for you. Once you’ve decided on a kit, be sure to follow the instructions carefully. This way, you can maximize the benefits of DNA testing.


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