Health & Environment
Scientists Discover New Complexity in DNA Instruction Manual
The Hindu1h
THE BRIEF
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Researchers at the Johns Hopkins School of Medicine discovered that inherited traits in mice break Mendelian genetic rules due to chemical modifications of the genome.
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The study, published in Nature Genetics on August 10, 2026, reveals that these modifications can jump across generations and change based on the sex of the animal.
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These findings suggest that current genome-wide association studies may overlook significant heritable variation because they focus primarily on DNA sequences rather than these complex chemical changes.