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Scientists just discovered a secret code hidden in your DNA

INTERNATIONAL (JAPAN, CHINA, CANADA, US), JUL 21 – Researchers found that nearly half of the human genome, derived from ancient viral DNA, acts as genetic switches regulating gene expression in early human development.

Summary by Science Daily
What scientists once dismissed as “junk” DNA may actually be some of the most powerful code in our genome. A new international study reveals that ancient viral DNA buried in our genes plays an active role in controlling how other genes are turned on or off, especially during early human development. These sequences, originally from long-extinct viruses, have evolved to act like tiny genetic switches. Using new analysis tools and large-scale expe…

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Science Daily broke the news in United States on Monday, July 21, 2025.
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