Expert DNA Testing  619-281-9986

provided by Expert Drug Testing, Inc. – Hours:  8 AM TO 4 PM Monday – Friday

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Siblingship Test Answers – Are you full brothers and or full sisters? Or perhaps half sisters or half brothers?

Siblingship DNA testing is making a determination if you are biologically DNA similar and how close your direct relationship is between your potential other brothers or sisters.  DNA values can range depending on the type of test that is done and how many people are included in the total DNA profile  samples that the forensic laboratories have to work with.

There are different types of siblingship tests so it is important to know how you think you are related.  Do you have the same mother?  Do you have the same father?  However unlikely, is it possible there is an uncle involved?  All are important questions that help guide us to select the right siblingship test for your situation to ensure you get the most accurate and truthful result based upon proven scientific methodologies.

Full Siblingship is presumed that you will have the same mother and same father.  In this scenario you will have a either zero relationship (not related) or a relationship probability average of greater than 97.10%*.
*  In this scenario only the DNA from the brother and or sister is compared the DNA profiles. 

Half Siblingship test makes a determination with the supposition that you are related but that you do not share one of the same biological parents.  Half siblingship tests can vary in the level of probability on average of 90.20%.

Scenarios of a half siblingship test are:  Same Father and Different Mother or Same Mother and Different Father.  Brother/Sister and Half Brother or Sister

How To Improve the Values?

By adding additional known relatives it is possible to increase or decrease the level of probability of relationship.  By adding additional DNA profiles of other siblings or uncles or aunts it will increase the the amount of DNA getnetic information to allow the scientists of adjust the level of probability based upon the results.  It creates a stronger case when working with a half siblingship test since not a full DNA profile from both parents exist especially when missing the male side of the genetic profile.

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Have Questions?  Need Quick Answers?  Just Call – 619-281-9986  Or – E-mails Us!

Monday – Friday:  8 am to 4 pm
Saturday:  Closed
Sunday:  Closed

Just call us!! and we’re happy to help!

What kind of test should you use for what ?
What are the types of DNA test is optimal to use?
What can influence DNA test results?

Speak to an Expert and get the best answers for your needs!

Our knowledge base consists of 8 years of professional experience servicing both private/personal/court testing as well as employment drug testing and employment background checks.


Community Partners:

Microsoft Business Development Team


Industry Education Partners:

DATIA – Drug Alcohol Testing Industry Association

SAPAA – Substance Abuse Program Administrator Association


Laboratory Partners:

Chromosomal Laboratories – Bode Technology

Quest Diagnostics



USDTL – United States Drug Testing Laboratories


Alear / E-screen / Redwood


Third Party Administrators:


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* Call if you have any questions 619-281-9986.


We have various valuable certifications that speak volumes of our commitment to high quality service of our work and ethics.

California DGS:#

Micro Business Certified

Service Disabled Veteran Owned Business

City of San Diego Business Tax


Privacy Notice

This privacy notice discloses the privacy practices for

This privacy notice applies solely to information collected by this web site.

It will notify you of the following:

1. What personally identifiable information is collected from you through the web site, how it is used and with whom it may be shared.

2. What choices are available to you regarding the use of your data.

3. The security procedures in place to protect the misuse of your information.

4. How you can correct any inaccuracies in the information.

Information Collection, Use, and Sharing

We are the sole owners of the information collected on this site. We only have access to/collect information that you voluntarily give us via email or other direct contact from you. We will not sell or rent this information to anyone.

We will use your information to respond to you, regarding the reason you contacted us. We will not share your information with any third party outside of our organization, other than as necessary to fulfill your request, e.g. to ship an order.

Unless you ask us not to, we may contact you via email in the future to tell you about specials, new products or services, or changes to this privacy policy.

Your Access to and Control Over Information

You may opt out of any future contacts from us at any time. You can do the following at any time by contacting us via the email address or phone number given on our website:

• See what data we have about you, if any.

• Change/correct any data we have about you.

• Have us delete any data we have about you.

• Express any concern you have about our use of your data.


We take precautions to protect your information. When you submit sensitive information via the website, your information is protected both online and offline.

Wherever we collect sensitive information (such as credit card data), that information is encrypted and transmitted to us in a secure way. You can verify this by looking for a closed lock icon at the bottom of your web browser, or looking for “https” at the beginning of the address of the web page.

While we use encryption to protect sensitive information transmitted online, we also protect your information offline. Only employees who need the information to perform a specific job (for example, billing or customer service) are granted access to personally identifiable information. The computers/servers in which we store personally identifiable information are kept in a secure environment.

If you feel that we are not abiding by this privacy policy, you should contact us immediately via telephone 619-281-9986 or




From 163 Freeway Downtown:

163 North to 8 East

Exit RIGHT (South) on Texas St. / Qualcomm Way

Go LEFT (East) at Camino Del Rio South (Bully’s on Left)

Go East 1.5 Miles 3435 Camino Del Rio South

From 5 Freeway Downtown /South San Diego:

5 North to 8 East

Exit RIGHT (South) Texas St. / Qualcomm Way

Go LEFT (East) at Camino Del Rio South (Bully’s on Left ) Go East 1.5 Miles to 3435 Camino Del Rio South

From 5 Freeway North San Diego:

5 South to 8 East

Exit RIGHT (South) Texas St. / Qualcomm Way

Go LEFT (East) at Camino Del Rio South (Bully’s on Left ) Go East 1.5 Miles to 3435 Camino Del Rio South

From 15 Freeway North San Diego:

15 South to the 8 / Camino Del Rio South Exit

Bear LEFT to Camino Del Rio South

Go RIGHT on Camino Del Rio South .5 Miles to 3435 Camino Del Rio South

From 15 Freeway South San Diego:

15 North to the 8 / Camino Del Rio South Exit

Bear LEFT to Camino Del Rio South

Go LEFT on Camino Del Rio South .5 Miles to 3435 Camino Del Rio South

Paternity Test – Yes or No – 99.999% Accurate

What is a Paternity test?

A paternity test is a DNA test that is performed to determine if a particular man is the biological father of a particular child.

A paternity test is a laboratory biological test that compares the child’s DNA to the potential fathers DNA to see if there is a direct relationship between the two.  When doing a direct relationship test results will yield a strong 99.999 percent of probably that you are related.  When the relationship is not there the level of probably is a 0.000.  There is nothing to interpret.  A YES or NO is clearly communicated on all of our results.

As part of our process we like to include the mother.  Why?

When you include the mothers DNA you get the highest possible values.  It allows the inclusion and exclusion of information so that all of the DNA material coding accounted for and you know who’s is who’s.

What does it legally mean?

Establishing paternity means being declared the legal father after the child is born. If the parents of a child were not married when the mother became pregnant or when the child was born, the child does not have a legal father until paternity is established.

Establishing paternity is important for both the child and the parents. A child is entitled to the sense of belonging and identity that comes from knowing both parents. Establishing paternity often has an important emotional and psychological benefit for the child.

Until there is a determination that a biological father is the legal father, the child has no right to receive financial support from the father, to
inherit from the father or to obtain insurance, veterans’, social security or other benefits through the father.

Likewise, until paternity is legally established, the biological father has no legal rights to the child, such as parenting time with the child, or
participation in major decisions about the child, such as medical treatment, education or religious training.

Fast, Easy and Painless Sample Collection

The sample collection process is easy and a painless process that process that can be performed in the privacy of your own home, or at our office in Mission Valley San Diego or at a scheduled location somewhere close to you.  We are national, our ability to work at any location throughout the United States.

A clean buccal swab (similar to a Q-Tip) is placed and rubbed in your mouth for about 30 seconds and then placed into an envelope.  The sample is mailed overnight via Fed-Ex Overnight to our laboratory for analysis were results will be available in 2-3 days.

Three Easy Steps………

  1. Visit our Office
  2. Collect Sample
  3. Receive Results