Scitechdaily iconScitechdailySep 16, 2026

Two DNA Molecules Should Repel. Instead, They “Zip” Together

Scientists have revealed how tiny metal ions help DNA molecules overcome electrical repulsion and "zip" together with striking precision. DNA molecules carry the same negative charge, so they would normally be expected to push apart.

Two DNA Molecules Should Repel. Instead, They “Zip” Together

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Scientists have revealed how tiny metal ions help DNA molecules overcome electrical repulsion and "zip" together with striking precision.

DNA molecules carry the same negative charge, so they would normally be expected to push apart.

Inside living cells, however, DNA must sometimes come together for processes such as genetic recombination, gene silencing and cancer development.

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Scientists have revealed how tiny metal ions help DNA molecules overcome electrical repulsion and "zip" together with striking precision. DNA molecules carry the same negative charge, so they would normally be expected to push apart. Inside living cells, however, DNA must sometimes come together for processes such as genetic recombination, gene silencing and cancer development.

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