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Evolution based on random mutations and natural selection

LuisDantas

Aura of atheification
Premium Member
It does come down to whether one should or not believe that life needs a supernatural agent to arise, doesn't it?

I wonder... we have already learned so much, and even learned to clone lifeforms.

I figure many people truly believe that it is altogether impossible for scientists to develop living microorganisms out of unliving molecules in a laboratory.

But if it turns out to be possible, what then? My best guess is that they a sizeable part will simply disbelieve that it happened, much as they disbelieve the current evidence of biological evolution despite it being so widely present and relied upon. But even more will simply reframe their beliefs and say that it does not count because God had to create humans first before they could think to do anything.
 

ArtieE

Well-Known Member
That is a dishonest and a misleading answer, they didn't create life but just make a new strain (alien bacteria) by adding synthetic DNA strands to the genetic code of E-coli.
What do you mean then when you say "create life"? Do you mean something different than we mean?
"Scientist Craig Venter creates life for first time in laboratory sparking debate about "playing god" Scientist Craig Venter creates life for first time in laboratory sparking debate about 'playing god' - Telegraph
 

LuisDantas

Aura of atheification
Premium Member
The article's experiment describes changing a bacteria (E. Coli) into a different form of life, doesn't it?

I think FearGod expected no previously existent lifeforms to be present.
 

ArtieE

Well-Known Member
from non living matter.
But FearGod there are 100,000,000,000,000 atoms in a human cell. There are 1.76 x 10 to the power of 14 molecules in a human cell. Are you expecting laboratory technicians to put them together one by one? Would you like to pay for the work? Or exactly how would you expect them to do it?
 

FearGod

Freedom Of Mind
But FearGod there are 100,000,000,000,000 atoms in a human cell. There are 1.76 x 10 to the power of 14 molecules in a human cell. Are you expecting laboratory technicians to put them together one by one? Would you like to pay for the work? Or exactly how would you expect them to do it?

Simple life is enough from non living matter.
 

ArtieE

Well-Known Member
Simple life is enough from non living matter.
The simplest life we know today is a bacterium. It contains about 10 to the power of 14 atoms. I don't think it's feasible for laboratory technicians to put a bacterium together atom by atom or molecule by molecule. How do you expect they could do it?
 

LuisDantas

Aura of atheification
Premium Member
The simplest life we know today is a bacterium. It contains about 10 to the power of 14 atoms. I don't think it's feasible for laboratory technicians to put a bacterium together atom by atom or molecule by molecule. How do you expect they could do it?
The same objection might as well apply to building polymers, if I am not mistaken. Coacervates have been made in laboratory, far as I know.

There is no clear or definite reason why living beings can't be obtained from unliving matter in a laboratory at some point. It just has not happened yet.
 

Kirran

Premium Member
We wouldn't need to do it atom by atom. We could build them up from amino acids, nucleotides and lipids, I imagine.
 

ArtieE

Well-Known Member
We wouldn't need to do it atom by atom. We could build them up from amino acids, nucleotides and lipids, I imagine.
My point is that in theory we could build a living cell, we could create life from non-living materials in a laboratory piece by piece, but it just isn't practical or worth the effort right now when we can just modify previously living material. As far as I understand it when the headlines say that scientists have created life they mean that literally. They have created life from non-life. They have taken a living cell, removed the genome, at which point the cell can't do what living cells can do and is per definition not alive, and put in their own genome and made new life. It is life from non-life.
 

FearGod

Freedom Of Mind
My point is that in theory we could build a living cell, we could create life from non-living materials in a laboratory piece by piece, but it just isn't practical or worth the effort right now when we can just modify previously living material. As far as I understand it when the headlines say that scientists have created life they mean that literally. They have created life from non-life. They have taken a living cell, removed the genome, at which point the cell can't do what living cells can do and is per definition not alive, and put in their own genome and made new life. It is life from non-life.

They only added a synthetic DNA molecules, they didn't remove life.
 
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