DNA Warrior Gene Test

What is the warrior gene?

The warrior gene refers to a genetic variant of the MAOA gene that was named due to its association with aggressive behaviour. The MAOA gene encodes the monoamine oxidase A enzyme that breaks down neurotransmitters – chemical messengers involved in transmitting messages from the brain to the rest of the body. The warrior gene results in low levels of monoamine oxidase A, disrupting the normal breakdown of these neurotransmitters.

How is the warrior gene inherited?

The MAOA gene is located on the X-chromosome. Males inherit only one X chromosome so they have only one version of MAOA. If a male inherits the warrior gene, they are more likely to be affected by it. Females have two X chromosomes, hence females can inherit two different versions of the gene. This means that even if a female inherits one copy of the warrior gene, they are less likely to be affected as they also carry one normal version of MAOA.

DNA testing for the warrior gene

A simple DNA test can be done to find out which single form of MAOA a male has inherited and which two forms a female has inherited. Females can inherit two identical or two different copies of the MAOA gene.

The test determines how many repeats are present in the regulatory region of the MAOA gene. There are five variants with different numbers of repeats – 2, 3, 3.5, 4 and 5. Individuals with 3.5 or 4 repeats, have the MAOA-H allele and make high levels of monoamine oxidase A. Individuals with 2, 3, or 5 repeats have the MAOA-L allele, known as the warrior gene.

Three Easy Steps

Step 1: Order test kit online

Step 2: Collect DNA sample using a painless mouth swab, and mail to the lab in the provided return envelope

Step 3: Receive your results online

Click here for more details and to watch our explanatory video.