Stunning 3D maps reveal DNA is structured before life “switches on”

ScienceDaily
Feb 27, 2026, 6:18 am27 pts
For decades, scientists believed a fertilized egg’s DNA began as a shapeless mass, only organizing itself once the embryo switched on its genes. But new research reveals that the genome is already carefully arranged in three dimensions long before that critical activation step, known as Zygotic Genome…

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