Results 11 to 20 of about 19,936 (198)

Multistable Protocells Can Aid the Evolution of Prebiotic Autocatalytic Sets

open access: yesLife, 2023
We present a simple mathematical model that captures the evolutionary capabilities of a prebiotic compartment or protocell. In the model, the protocell contains an autocatalytic set whose chemical dynamics is coupled to the growth–division dynamics of ...
Angad Yuvraj Singh, Sanjay Jain
doaj   +1 more source

Origin of Life: The Point of No Return

open access: yesLife, 2020
Origin of life research is one of the greatest scientific frontiers of mankind. Many hypotheses have been proposed to explain how life began. Although different hypotheses emphasize different initial phenomena, all of them agree around one important ...
Dimiter Kunnev
doaj   +1 more source

The Prebiotic Kitchen: A Guide to Composing Prebiotic Soup Recipes to Test Origins of Life Hypotheses

open access: yesLife, 2021
“Prebiotic soup” often features in discussions of origins of life research, both as a theoretical concept when discussing abiological pathways to modern biochemical building blocks and, more recently, as a feedstock in prebiotic chemistry experiments ...
Lena Vincent   +4 more
doaj   +1 more source

Emergence and diversification of a host-parasite RNA ecosystem through Darwinian evolution

open access: yeseLife, 2020
In prebiotic evolution, molecular self-replicators are considered to develop into diverse, complex living organisms. The appearance of parasitic replicators is believed inevitable in this process.
Taro Furubayashi   +6 more
doaj   +1 more source

Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry

open access: yesLife, 2020
A variety of organic chemicals were likely available on prebiotic Earth. These derived from diverse processes including atmospheric and geochemical synthesis and extraterrestrial input, and were delivered to environments including oceans, lakes, and ...
Kuhan Chandru   +3 more
doaj   +1 more source

The Grayness of the Origin of Life

open access: yesLife, 2021
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.
Hillary H. Smith   +15 more
doaj   +1 more source

Prebiotic chemistry: a review of nucleoside phosphorylation and polymerization

open access: yesOpen Biology, 2023
The phosphorylation of nucleosides and their polymerization are crucial issues concerning the origin of life. The question of how these plausible chemical processes took place in the prebiotic Earth is still perplexing, despite several studies that have ...
Xiaofan Guo   +3 more
doaj   +1 more source

The origins and physical roots of life’s dual – metabolic and genetic – nature [PDF]

open access: yes, 2017
This review paper aims at a better understanding of the origin and physical foundation of life’s dual – metabolic and genetic – nature. First, I give a concise ‘top-down’ survey of the origin of life, i.e., backwards in time from extant DNA/RNA/protein ...
De Tiège, Alexis
core   +2 more sources

Remnants of an ancient metabolism without phosphate [PDF]

open access: yes, 2017
Phosphate is essential for all living systems, serving as a building block of genetic and metabolic machinery. However, it is unclear how phosphate could have assumed these central roles on primordial Earth, given its poor geochemical accessibility.
Goldford, Joshua E.   +3 more
core   +1 more source

Temporal nanofluid environments induce prebiotic condensation in water

open access: yesCommunications Chemistry, 2023
Water is a problem in understanding chemical evolution towards life’s origins on Earth. Although all known life is being based on water key prebiotic reactions are inhibited by it.
Andrea Greiner de Herrera   +2 more
doaj   +1 more source

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