Getting to the bottom of Riverdale’s ‘serial-killer gene’: Can it really drive you to violence?

The penultimate episode of Riverdale season three contained a lot of shocking revelations, but for Betty fans, nothing was crazier than the info that our favorite pony-tailed blonde received. … In episode 21, Alice reveals to her daughter that she has the monoamine oxidase A (MAOA) AKA “the serial killer gene.”

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If your MAOA is functioning, you’re good to go, but the issue comes when you have low-functioning MAOA. This causes serotonin and other neurotransmitters to build up in the brain, which can cause behavioral problems like “aggressive and violent outbursts,” according to the GHR. …

It is important to note two things about the MAOA. One, it affects males almost exclusively, and two, according to Rose McDermott, PhD, …  it simply “increases the likelihood that a person who possesses this variant will engage in physical aggression in response to provocation… .”

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…Alice also mentions CDH13. Well, there is significantly less information known about this gene’s affect on the violent tendencies of a person.

CDH13 helps signal between cells, according to the Genetic Literacy Project. It has been linked to everything from attention deficit/hyperactivity disorder (ADHD) to bipolar disorder, but its affect on criminality is still unknown.

Read full, original post: Can You Really Have a Serial Killer Gene like Betty on “Riverdale”?