RNA world & the origin of life

[Into the Night]

Yale University Department of Earth Sciences: "Geochemistry is the branch of Earth Science that applies chemical principles to deepen an understanding of the Earth system."
https://earth.yale.edu/geochemistry



Radiometric isotopes



National Academy of Sciences paper --> "Strong isotopic evidence for a weakly oxygenated ocean–atmosphere system during the Proterozoic"

Summary: "We use the isotopic record of iron oxides deposited in ancient shallow marine environments to show that oxygen remained at extremely low levels in the ocean–atmosphere system for most of Earth’s history"
https://www.pnas.org/doi/10.1073/pnas.2116101119

There is no branch of science called 'geochemistry'. Science has NO theories about unobserved events. They are not falsifiable.
Religion is not science, dude.

 

[Into the Night]

There are various tricks to see where either the environment of early times, or more often the effects of the environment has been trapped in place. Obviously, I am not an expert on this all, nor are you. If you think you can make major breakthroughs in the field of paleo biology, you should become an expert, and try.

How do you know it was an 'environment of early times'? There is no such thing as 'paleobiology' in science. Religion is not science.

 

[Into the Night]

There are detailed studies of this process, like this one:

https://republicans-cha.house.gov/s...cuments/CA Ballot Harvesting Report FINAL.pdf

https://www.ncsl.org/research/elect...-an-absentee-ballot-other-than-the-voter.aspx

https://ballotpedia.org/Arguments_for_and_against_ballot_harvesting/ballot_collection

No science here...move along...move along...

Science is not a 'study' or a paper or a Holy Link.

 

[ExpressLane]

.
How life could have arisen on an ‘RNA world’

New evidence suggests RNA and peptides may have helped build each other on early Earth

11 MAY 2022 - Current Event, News Release on Cutting Edge Scientific Research

It’s the ultimate chicken-and-egg conundrum. Life doesn’t work without tiny molecular machines called ribosomes, whose job is to translate genes into proteins. But ribosomes themselves are made of proteins. So how did the first life arise?

Researchers may have taken the first step toward solving this mystery. They’ve shown that RNA molecules can grow short proteins called peptides all by themselves—no ribosome required. What’s more, this chemistry works under conditions likely present on early Earth.

“It’s an important advance,” says Claudia Bonfio, an origin of life chemist at the University of Strasbourg who was not involved in the work. The study, she says, provides scientists a new way of thinking about how peptides were built.

Researchers who study the origin of life have long considered RNA the central player because it can both carry genetic information and catalyze necessary chemical reactions. It was likely present on our planet before life evolved. But to give rise to modern life, RNA would have had to somehow “learn” to make proteins, and eventually ribosomes. “At the moment, the ribosome simply falls from the heavens,” says Thomas Carell, a chemist at Ludwig Maximilian University of Munich.


https://www.science.org/content/art...e chicken-and,themselves are made of proteins.

 

[Cypress]

There is no branch of science called 'geochemistry'.

Yale University, Department of Earth & Planetary Sciences:

"Geochemistry is the branch of Earth Science that applies chemical principles to deepen an understanding of the Earth system and systems of other planets"
https://earth.yale.edu/geochemistry

 

[Into the Night]

My favorite are cosmology, paleoanthropology, genetics, Earth & planetary sciences.

I really just can't get into botany or entomology, but maybe someday I should give them a chance.

You deny and discard science. You have already discarded the 0th, 1st, and 2nd laws of thermodynamics, the Stefan-Boltzmann law, Planck's laws, Einstein's laws, and Newton's laws. Religion is not science.

 

[Into the Night]

Political papers published by partisan groups are now science? Since when?
Do you even know what a scientific journal is or the process of peer review?

Science is not a political party. It is not a journal or magazine. It does not use consensus. There is no voting bloc in science. It has no politics. It has no religion. It is atheistic.

 

[ExpressLane]

Yale University, Department of Earth and Planetary Sciences:
"Geochemistry is the branch of Earth Science that applies chemical principles to deepen an understanding of the Earth system and systems of other planets"
https://earth.yale.edu/geochemistry

Why did eyes evolve. Why did ears evolve? How many trans species procreation happen on Earth today.

 

[Into the Night]

They are when it's political science. That's a quack liberal arts field--you know, like Womyn's Studies, or Critical Whatever Theory-- and the appropriate one for nonsense on politics...

Quite right. It's quackery. Science has no politics.

 

[Into the Night]

Origin of life theory involving RNA–protein hybrid gets new support

Structure that links amino acids suggests that early organisms could have been based on an RNA–protein mix.

Chemists say they have solved a crucial problem in a theory of life’s beginnings, by demonstrating that RNA molecules can link short chains of amino acids together.

The findings, published on 11 May in Nature1, support a variation on the ‘RNA world’ hypothesis, which proposes that before the evolution of DNA and the proteins it encodes, the first organisms were based on strands of RNA, a molecule that can both store genetic information — as sequences of the nucleosides A, C, G and U — and act as a catalyst for chemical reactions.

The discovery “opens up vast and fundamentally new avenues of pursuit for early chemical evolution”, says Bill Martin, who studies molecular evolution at Heinrich Heine University Düsseldorf in Germany.

Continued
https://www.nature.com/articles/d41586-022-01303-z

Religion is not science, dude.
Science has no theories about past unobserved events.
Science has no religion. It is completely atheistic.

 

[Into the Night]

Holly Rollers will holler that abiogenesis isn't science because it's not testable.

They are right. The Theory of Abiogenesis is not a nonscientific theory...and a religion.

Abiogenesis is the hypothesis that prebiotic chemical processes could lead to cellular life.

Not a hypothesis. A theory. A hypothesis stems from a theory, not the other way around.

Processes, especially as complex as abiogenesis, would require many preliminary and intermediate chemical steps between inert prebiotic chemicals, and the cellular structure of a self replicating prokaryotic cell.

Many of those intermediate chemical steps have been tested, including the spontaneous generation of amino acids, peptides, and precursors to RNA under laboratory conditions.

Even if a prokaryotic cell is never generated from probiotic conditions, that doesn't mean there was never any science involved. It means we would have to totally rethink the hypothesis that prebiotic chemical processes were responsible for cellular structure. Failed tests are still perfectly valid scientific inquiries, and are an expected part of the scientific method.

Religion is not science. Science is not a 'method' or a procedure.
Science has no theories about past unobserved events. Science has no religion. It is completely atheistic.

 

[Into the Night]

You are like a broken record.

Inversion fallacy. It is YOU that keeps making the same mistakes. It is YOU that keeps trying to redefine 'science' and 'religion'. This is YOUR problem, not mine.

 

[Bigdog]

Life only arose once, sometime before 3.5 billion years ago. Every species that has ever existed has the DNA which is a genetic legacy of those first single celled prokaryotes in the remote past.

But to me, what is extraordinary is the persistence and tenacity of life. Even through many mass extinction events, some genetic material survived to fuel the speciation of new species of plants and animals.

True, there is only evidence of it happening one time.

Can anyone tell me why a string of atoms would have a desire to SURVIVE, ... and a desire to REPRODUCE?

 

[Into the Night]

Yale University, Department of Earth & Planetary Sciences:

"Geochemistry is the branch of Earth Science that applies chemical principles to deepen an understanding of the Earth system and systems of other planets"
https://earth.yale.edu/geochemistry

Science is not a university or class. There is not branch of science called 'geochemistry'.

 

[Into the Night]

Why did eyes evolve. Why did ears evolve? How many trans species procreation happen on Earth today.

Unknown. It is not known even if they evolved.

 

[Into the Night]

True, there is only evidence of it happening one time.

Can anyone tell me why a string of atoms would have a desire to SURVIVE, ... and a desire to REPRODUCE?

Atoms are not intelligent. They of course have no desire.

 

[Poor Richard Saunders]

There is no branch of science called 'geochemistry'. Science has NO theories about unobserved events. They are not falsifiable.
Religion is not science, dude.

I guess Einstein was not a genius compared to you since he wrote theories about unobserved events.

 

[Matt Dillon]

I guess Einstein was not a genius compared to you since he wrote theories about unobserved events.

You guess wrong,

 

[Nordberg]

Life only arose once, sometime before 3.5 billion years ago. Every species that has ever existed has the DNA which is a genetic legacy of those first single celled prokaryotes in the remote past.

But to me, what is extraordinary is the persistence and tenacity of life. Even through many mass extinction events, some genetic material survived to fuel the speciation of new species of plants and animals.

Extremophiles show that clearly. Life exists on earth in places that science thought were impossible.

 

[Into the Night]

I guess Einstein was not a genius compared to you since he wrote theories about unobserved events.

Einstein created no theory based on unobserved events.