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Ancient Gene 5DOM Revealed as Key to Limb Evolution

9/17/2025

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Summary

Story summary

Scientists investigate limb evolution from fish to land animals, examining ancient genetic recipes.
They employ CRISPR technology to study DNA and gene activity in embryos.
The DNA segment 5DOM is vital for limb development across species.
Research indicates 5DOM's role evolved over 360 million years, initially regulating anal and sexual openings.
Zebrafish studies confirm 5DOM's function in embryos, suggesting a shared ancestry with mammals.

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Story summary

Scientists investigate limb evolution from fish to land animals, examining ancient genetic recipes.
They employ CRISPR technology to study DNA and gene activity in embryos.
The DNA segment 5DOM is vital for limb development across species.
Research indicates 5DOM's role evolved over 360 million years, initially regulating anal and sexual openings.
Zebrafish studies confirm 5DOM's function in embryos, suggesting a shared ancestry with mammals.