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Sökning: onr:"swepub:oai:DiVA.org:umu-186359" > The grayness of the...

The grayness of the origin of life

Smith, Hillary H. (författare)
Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
Hyde, Andrew S. (författare)
Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
Simkus, Danielle N. (författare)
NASA Goddard Space Flight Center, MD, Greenbelt, United States; NASA Postdoctoral Program, USRA, MD, Columbia, United States; Department of Physics, Catholic University of America, DC, Washington, United States
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Libby, Eric (författare)
Umeå universitet,Institutionen för matematik och matematisk statistik,Santa Fe Institute, NM, Santa Fe, United States
Maurer, Sarah E. (författare)
Department of Chemistry and Biochemistry, Central Connecticut State University, CT, New Britain, United States
Graham, Heather V. (författare)
NASA Goddard Space Flight Center, MD, Greenbelt, United States; Department of Physics, Catholic University of America, DC, Washington, United States
Kempes, Christopher P. (författare)
Santa Fe Institute, NM, Santa Fe, United States
Lollar, Barbara Sherwood (författare)
Department of Earth Sciences, University of Toronto, ON, Toronto, Canada
Chou, Luoth (författare)
NASA Goddard Space Flight Center, MD, Greenbelt, United States; NASA Postdoctoral Program, USRA, MD, Columbia, United States; Department of Biology, Georgetown University, DC, Washington, United States
Ellington, Andrew D. (författare)
Department of Molecular Biosciences, College of Natural Sciences, The University of Texas at Austin, TX, Austin, United States; Center for Systems and Synthetic Biology, The University of Texas at Austin, TX, Austin, United States
Fricke, G. Matthew (författare)
Department of Computer Science, University of New Mexico, NM, Albuquerque, United States
Girguis, Peter R. (författare)
Department of Organismic and Evolutionary Biology, Harvard University, MA, Cambridge, United States
Grefenstette, Natalie M. (författare)
Santa Fe Institute, NM, Santa Fe, United States; Blue Marble Space Institute of Science, WA, Seattle, United States
Pozarycki, Chad I. (författare)
NASA Goddard Space Flight Center, MD, Greenbelt, United States; Department of Biology, Georgetown University, DC, Washington, United States
House, Christopher H. (författare)
Department of Geosciences, The Pennsylvania State University, PA, University Park, United States; Earth and Environmental Systems Institute, The Pennsylvania State University, PA, University Park, United States
Johnson, Sarah Stewart (författare)
Department of Biology, Georgetown University, DC, Washington, United States; Science, Technology and International Affairs Program, Georgetown University, DC, Washington, United States
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 (creator_code:org_t)
2021-05-29
2021
Engelska.
Ingår i: Life. - : MDPI AG. - 2075-1729. ; 11:6
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • In the search for life beyond Earth, distinguishing the living from the non-living is paramount. However, this distinction is often elusive, as the origin of life is likely a stepwise evolutionary process, not a singular event. Regardless of the favored origin of life model, an inherent “grayness” blurs the theorized threshold defining life. Here, we explore the ambiguities between the biotic and the abiotic at the origin of life. The role of grayness extends into later transitions as well. By recognizing the limitations posed by grayness, life detection researchers will be better able to develop methods sensitive to prebiotic chemical systems and life with alternative biochemistries.

Ämnesord

NATURVETENSKAP  -- Biologi -- Evolutionsbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Evolutionary Biology (hsv//eng)

Nyckelord

Agnostic biosignatures
Evolutionary transitions
Lipids
Metalloenzymes
Meteoritic organics
Origin of life
Pre-RNAs
Prebiotic evolution
Thioesters

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