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![NeuroscienceNew Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::32302688.png) Neuroscience News [@NeuroscienceNew](/creator/twitter/NeuroscienceNew) on x 504.3K followers
Created: 2025-07-21 20:23:08 UTC

Hidden Genes in DNA “Dark Matter” Linked to Human Brain Traits

A new study uncovers how genes hidden in the genome’s “dark matter” help shape unique human brain features. 

Researchers identified two duplicated genes, GPR89B and FRMPD2B, that influence brain size and synaptic signaling. 

These genes, located in repeat-heavy regions long considered too complex to study, became accessible thanks to the complete human genome sequence. 

Using zebrafish models, scientists demonstrated how introducing these genes altered brain development. 

The findings offer insights into brain evolution and conditions like language disorders and autism. 

The work also provides a resource to investigate hundreds of similar genes.

![](https://pbs.twimg.com/media/GwaGlt2XEAE3oTd.jpg)

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**Related Topics**
[dna](/topic/dna)

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