Origin of life

Discussion of everything related to the Theory of Evolution.

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Jdban
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Origin of life

Post by Jdban » Fri Nov 18, 2005 6:45 am

My biology teacher recently showed us a video of evolution.
It suddenly showed one day when DNA existed, and replicated itself, gained a membrane and lived on.
How could something so complex and alive form from chemicals.
I don't understand it.
I would like some help, so thanks in advance.

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Post by baikuza » Fri Nov 18, 2005 12:31 pm

it's an experiment.
hm.. so. it's kinda of soul. and we can not make a soul, and even we can not imagine how is, what is look like, why is a soul.

if the protein maked by that so. maybe u should try to get information about the next experiment.(about high voltages to CH3, NH3, ++)

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biostudent84
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Post by biostudent84 » Fri Nov 18, 2005 12:40 pm

Scientists still agree that there are holes in this theory. But they -are- working to fill those holes.

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MrMistery
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Post by MrMistery » Fri Nov 18, 2005 6:57 pm

Actually it all began with the plasma membrane(liposomes).. There are numerous books on the subject.. Try reading one of them, they are interesting...
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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Post by shanec14 » Fri Nov 18, 2005 11:36 pm

The science of evolution is something that may one day be open to the public for people to copy but for know the problem is that the people cant figure out how life started because the religions all say that thier god created man and science says taht we evolved from monkeys and it has always been a subject of great deliberation.

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Re: Origin of life

Post by DJ » Sat Nov 19, 2005 8:51 pm

Jdban wrote:My biology teacher recently showed us a video of evolution.
It suddenly showed one day when DNA existed, and replicated itself, gained a membrane and lived on.
How could something so complex and alive form from chemicals.
I don't understand it.
I would like some help, so thanks in advance.


I think most agree that RNA came first.

Also, something "so complex and alive" is not spontaneous. And everything is formed from chemicals.

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Re: Origin of life

Post by senkhisis » Mon Nov 21, 2005 8:52 pm

DJ wrote:I think most agree that RNA came first.

The reasoning for this is that RNA actually provides the method for replication of RNA. The polymerases and such are made of RNA. So once you have RNA, it's possible to synthesize new RNA. Not so for DNA.

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Poison
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Post by Poison » Mon Nov 21, 2005 9:24 pm

There are some parts that are not explained yet, but that is the most logical-therefore the best- theory we have.
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Post by dmvprof » Tue Nov 22, 2005 8:21 pm

Poison wrote:There are some parts that are not explained yet, but that is the most logical-therefore the best- theory we have.


I don't know about your biology teacher or what video he's showing you, but the Theory of Evolution is completely silent on the 'Origin of Life'.

The Theory of Evolution is a theory about the origin of species, not life.

Hence the name of Darwin's work...'The Origin of Species'.

The study of life from non-living things is 'abiogenesis'.

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Post by baikuza » Wed Nov 23, 2005 4:28 am

??? are we talking about origin of species or the origin of life. yes jbdan said about evolution. but in my mind the meaning of evolution is releated to the chemical evolution. so i think jbdan not said about the origin of species.

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Post by DJ » Wed Nov 23, 2005 4:43 am

shanec14 wrote: science says taht we evolved from monkeys


i don't think science says that.

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Post by MrMistery » Wed Nov 23, 2005 7:23 pm

We evolved from apes, not monkeys
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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