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the claim

The human genome contains genes inherited from the universal common ancestor

the verdict
SUPPORTED
the evidence backs this
Recorded sources
6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the human genome contains genes inherited from the universal common ancestor?

Yes. Modern biochemistry and comparative genomics strongly support the conclusion that all extant cellular life shares genes inherited from the last universal common ancestor (LUCA).

Verdict: SUPPORTED · 6 sources for, 0 against · Last checked

The analysis

The retrieved papers consistently demonstrate that genomic and phylogenetic analyses identify numerous gene families, protein domains, and universal paralogs inherited from the Last Universal Common Ancestor (LUCA). There is no evidence in the retrieved set disputing the existence of genes inherited from LUCA.

Evidence for · 6
The nature of the last universal common ancestor and its impact on the early Earth system
2024
The paper reconstructs LUCA's genome and protein inventory, indicating significant genetic inheritance from the last universal common ancestor.
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Moody, E., Álvarez-Carretero, S., Mahendrarajah, T., Clark, J. W., Betts, H. C., Dombrowski, N., Szánthó, L. L., Boyle, R. A., Daines, S., Chen, X., Lane, N., Yang, Z., Shields, G. A., Szöllősi, G., Spang, A., Pisani, D., Williams, T., Lenton, T., & Donoghue, P. (2024). The nature of the last universal common ancestor and its impact on the early Earth system. doi.org. https://doi.org/10.1038/s41559-024-02461-1

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More for · 5
Order of amino acid recruitment into the genetic code resolved by last universal common ancestor’s protein domains
2024
The study identifies protein domains dating back to LUCA to trace amino acid recruitment into the genetic code.
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Wehbi, S., Wheeler, A. L., Morel, B., Manepalli, N., Minh, B. Q., Lauretta, D., & Masel, J. (2024). Order of amino acid recruitment into the genetic code resolved by last universal common ancestor’s protein domains. doi.org. https://doi.org/10.1073/pnas.2410311121

Glutamine synthetase evolutionary history revisited: Tracing back beyond the Last Universal Common Ancestor
2022
The research evaluates glutamine synthetase gene families tracing back beyond the Last Universal Common Ancestor.
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Fernandes, G. D. C., Turchetto-Zolet, A., & Passaglia, L. (2022). Glutamine synthetase evolutionary history revisited: Tracing back beyond the Last Universal Common Ancestor. doi.org. https://doi.org/10.1111/evo.14434

The Unfinished Reconstructed Nature of the Last Universal Common Ancestor
2024
The review discusses how molecular biology and shared ancestry trace genes and protein subunits back to LUCA.
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Delaye, L. (2024). The Unfinished Reconstructed Nature of the Last Universal Common Ancestor. doi.org. https://doi.org/10.1007/s00239-024-10187-8

Phenotypic reconstruction of the last universal common ancestor reveals a complex cell
2020
The study reconstructs LUCA's complex cellular phenotype and genome based on phylogenetically informed ancestral character reconstruction.
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Baidouri, F. E., Venditti, C., Suzuki, S., Meade, A., & Humphries, S. (2020). Phenotypic reconstruction of the last universal common ancestor reveals a complex cell. doi.org. https://doi.org/10.1101/2020.08.20.260398

Universal paralogs provide a window into evolution before the last universal common ancestor.
2026
The paper highlights universal paralogs that retain phylogenetic signals and gene history from evolutionary events predating LUCA.
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AD, G., GP, F., & B, K. (2026). Universal paralogs provide a window into evolution before the last universal common ancestor.. doi.org. https://doi.org/10.1016/j.xgen.2026.101140

What does the evidence say?

The retrieved papers consistently demonstrate that genomic and phylogenetic analyses identify numerous gene families, protein domains, and universal paralogs inherited from the Last Universal Common Ancestor (LUCA). There is no evidence in the retrieved set disputing the existence of genes inherited from LUCA.

Receipt History
first checked06 Aug 2026
judged → SUPPORTED · 8906 Aug 2026
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