Results 81 to 90 of about 2,618 (222)
Step‐by‐Step Towards Biological Homochirality – from Prebiotic Randomness To Perfect Asymmetry
Chemistry – An Asian Journal, Volume 20, Issue 1, January 2, 2025.This review focuses on the theories related to the emergence of biological homochirality, from assembly of building blocks at the monomer level, to polymerization into functional homochiral biopolymers. Abstract The history of life's formation and the origin of its stereochemistry are nearly as multifaceted as the life itself.
Ivana Mejdrová +2 more
wiley +1 more source
The remarkable cell: Intelligently designed or by evolutionary process?
Verbum et Ecclesia, 2013 The objective of this article was to deal with the challenging theme of the Origin of Life. Science has been arguing the when and how of the beginning of life for centuries.
Mark Pretorius
doaj +1 more source
Factoring Origin of Life Hypotheses into the Search for Life in the Solar System and Beyond
Life, 2020 Two widely-cited alternative hypotheses propose geological localities and biochemical mechanisms for life’s origins. The first states that chemical energy available in submarine hydrothermal vents supported the formation of organic compounds and ...
Alex Longo, Bruce Damer
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Defined folding pattern of poly(rG) supports inherent ability to encode biological information
Biopolymers, Volume 115, Issue 6, November 2024.Abstract The RNA World hypothesis posits that RNA can represent a primitive life form by reproducing itself and demonstrating catalytic activity. However, this hypothesis is incapable of addressing several major origin‐of‐life (OoL) questions. A recently described paradox‐free alternative OoL hypothesis, the Quadruplex (G4) World, is based on the ...
Nickolas Kankia +4 more
wiley +1 more source
Toward homochiral protocells in noncatalytic peptide systems
, 2009 The activation-polymerization-epimerization-depolymerization (APED) model of Plasson et al. has recently been proposed as a mechanism for the evolution of homochirality on prebiotic Earth.
A Brack +61 more
core +1 more source
Pediatric Blood &Cancer, Volume 71, Issue 11, November 2024.Abstract An attractive flower from the island of Madagascar has in part saved the lives of thousands of children with acute lymphoblastic leukemia (ALL). Random mutations and alterations to the genome led to the evolution of genes encoding enzymes, which would provide the periwinkle flower an arsenal of secondary metabolites to survive within the ...
Jeffrey W. Taub +5 more
wiley +1 more source
Abiogenesis: the Carter argument reconsidered
International Journal of Astrobiology, 2022 AbstractThe observation of life on Earth is commonly believed to be uninformative regarding the probability of abiogenesis on other Earth-like planets. This belief is based on the selection effect of our existence. We necessarily had to find ourselves on a planet where abiogenesis occurred, thus nothing can be inferred about the probability of ...
openaire +2 more sources
Autonomous Development of Compositional Diversity in Self‐Spreading Flat Protocells
ChemSystemsChem, Volume 6, Issue 6, November 2024.We present a feasible pathway leading to a rudimentary type of protocell diversity and speciation based on the fusion of flat giant unilamellar lipid vesicles on solid surfaces. Abstract An experimental pathway to the spontaneous generation of compositionally diverse synthetic protocells is presented.
İrep Gözen, Stephen Mann, Aldo Jesorka
wiley +1 more source
Schets van de strijd over de generatio spontanea en van de beteekenis van deze strijd voor de ontwikkeling van de microbiologie [PDF]
, 1938 Door de onderzoekingen van Redi, Vallisnieri, Swammerdam en Leeuwenhoek is, ten aanzien van de kleine, lagere en hoogere dieren de strijd voor de mogelijkheid eener spontane generatie vrijwel tot stilstand gebracht....
Edens, Jacob Dirk
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Pflüger, Archiv für die Gesammte Physiologie des Menschen und der Thiere, 1873 n ...
openaire +1 more source