Results 1 to 10 of about 298 (200)

tRNA Core Hypothesis for the Transition from the RNA World to the Ribonucleoprotein World [PDF]

open access: yesLife, 2016
Herein we present the tRNA core hypothesis, which emphasizes the central role of tRNAs molecules in the origin and evolution of fundamental biological processes.
Savio T. de Farias   +2 more
doaj   +5 more sources

Multi-agent approach to sequence structure simulation in the RNA World hypothesis.

open access: yesPLoS ONE, 2020
The origins of life on Earth have been the subject of inquiry since the early days of philosophical thought and are still intensively investigated by the researchers around the world.
Jaroslaw Synak   +2 more
doaj   +5 more sources

A Hypothesis: Life Initiated from Two Genes, as Deduced from the RNA World Hypothesis and the Characteristics of Life-Like Systems [PDF]

open access: yesLife, 2016
RNA played a central role in the emergence of the first life-like system on primitive Earth since RNA molecules contain both genetic information and catalytic activity. However, there are several drawbacks regarding the RNA world hypothesis.
Kunio Kawamura
doaj   +5 more sources

The RNA World: Piecing together the historical development of a hypothesis

open access: yesMètode Science Studies Journal: Annual Review, 2016
The concept of an RNA world is a hypothesis firmly rooted in empirical data and is part of a long and complex scientific perspective that goes back more than fifty years to the discovery of the central role RNA and ribonucleotides play in protein ...
Antonio Lazcano
doaj   +5 more sources

The RNA world hypothesis: the worst theory of the early evolution of life (except for all the others)a [PDF]

open access: yesBiology Direct, 2012
The problems associated with the RNA world hypothesis are well known. In the following I discuss some of these difficulties, some of the alternative hypotheses that have been proposed, and some of the problems with these alternative models.
Bernhardt Harold S
doaj   +3 more sources

The RNA World Hypothesis: A Critical Reassessment of Prebiotic Plausibility

open access: yesBioCosmos
The RNA world hypothesis (RWH) proposes that life originated from self-replicating RNA molecules, yet its prebiotic plausibility remains poorly quantified.
Truman Royal J.
doaj   +2 more sources

Case for an RNA–prion world: a hypothesis based on conformational diversity [PDF]

open access: yesJournal of Biological Physics, 2011
Prions and other misfolded proteins can impart their structure and functions to normal molecules. Based upon a thorough structural assessment of RNA, prions and misfolded proteins, especially from the perspective of conformational diversity, we propose a case for co-existence of these in the pre-biotic world. Analyzing the evolution of physical aspects
Param Priya Singh   +2 more
exaly   +3 more sources

Development of a Functionally Minimized Mutant of the R3C Ligase Ribozyme Offers Insight into the Plausibility of the RNA World Hypothesis [PDF]

open access: yesBiology, 2014
The R3C ligase ribozyme is an artificial ligase ribozyme produced by modification of the ribozyme that lacks cytidine. Here, we attempted to modify the original R3C ribozyme (73 nucleotides) by reducing the number of nucleotides while maintaining the maximum possible catalytic efficiency. By partially deleting both the “grip” (P4 + P5) and “hammer” (P3)
Takuya Umehara   +2 more
exaly   +4 more sources

Editorial: RNA world hypothesis and the origin of life: Astrochemistry perspective

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Ashraf Ali   +2 more
doaj   +3 more sources

Assumption and Criticism on RNA World Hypothesis from Ribozymes to Functional Cells [PDF]

open access: yesBioengineering and Bioscience, 2021
The origin of life has long baffled scientists, trying to shed some light on the universe of the unknown we live in. The RNA world hypothesis is merely an idea that tries to grasp the root of life by going beyond phylogenetic trees, and the ‘Drawinian threshold'.
Sami EL Khatib, Ahmad Raslan
openaire   +1 more source

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