Has anyone ever studied the physics of DNA

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In summary, the conversation discussed the role of physics in understanding the process of DNA organizing elements into life forms. It also touched on the topics of self-awareness and the relationship between biology and philosophy. The conversation concluded that while some aspects of DNA and biology can be understood through physics, attempting to explain everything in this way would be complicated and ultimately pointless. The conversation also mentioned the possibility of synthesizing DNA and other chemicals to create life forms.
  • #1
TheDesigner
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I mean from a physical and not chemical or biological standpoint, DNA takes the elements of the Earth and turns them into us, at some point this becomes far more basic than biology and DNA is organizing elements by code into life forms. Has anyone ever approached what is happening from that perspective?
 
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  • #2
The double helix structure of DNA was determined by a physics test - x-ray diffraction, and several of the discoverers of this (not all of whom shared in the Nobel prize) were physicists.
 
  • #3
Vanadium 50 said:
The double helix structure of DNA was determined by a physics test - x-ray diffraction, and several of the discoverers of this (not all of whom shared in the Nobel prize) were physicists.
That is not what I am asking, I am interested in how elements of the Earth become animals. See if you break down DNA it's just elements, that somehow become self aware
 
  • #4
That is not what I am asking, I am interested in how elements of the Earth become animals. See if you break down DNA it's just elements, that somehow become self aware

Reference https://www.physicsforums.com/threa...udied-the-physics-of-dna.907295/#post-5714266

I don't think the growth of self-awarness is a physics problem: it seems to belong somewhere between biology and philosophy; as far as I know, self-awareness is still rather a mystery. In other respects, how chemical elements turn into animals (and plants) is a matter of chemistry and biology, and I think pretty well understood.

It's not really clear what you are asking.
 
  • #5
John Park said:
I don't think the growth of self-awarness is a physics problem: it seems to belong somewhere between biology and philosophy; as far as I know, self-awareness is still rather a mystery. In other respects, how chemical elements turn into animals (and plants) is a matter of chemistry and biology, and I think pretty well understood.

It's not really clear what you are asking.
I am asking 2 things.

1. If you believe in Darwinism, how did the elements of the Earth turn themselves into you?
2. If you are a theist, how did God turn the elements of the Earth into you?

Either way we are elemental before we are biological, and since physics is literally the study of everything, at some level we can be broken down into the physical realm. Another way whatever DNA is, it turns inanimate physical elements, C, H,O,S, N, Ca, P, Na, Mg into a moving thinking thing. How would one begin to combine a human being or even simple bacteria, beginning with raw elements?
 
  • #6
If you believe in Darwinism, how did the elements of the Earth turn themselves into you?

As I said, this seems pretty well understood (with a few gaps) in terms of chemistry and biology.

Either way we are elemental before we are biological

Not in a chronological sense. "We" are nothing if not biological.

Physics doesn't attempt to explain things that are better understood in other ways. At some point a very detailed analysis becomes too complicated to be meaningful. Much of chemistry can be understood in terms of physical processes and principles (quantum mechanics), and much of biology can be understood in terms of chemical processes. But to try to explain everything in terms of the basic physics would be pointless. It would be like trying to forecast the weather using the quantum theory of nitrogen, oxygen, carbon dioxide and water--even if it could be done, the results would be so complex they would be incomprehensible.

Another way whatever DNA is

As pointed out above, we know very well what DNA is.

How would one begin to combine a human being or even simple bacteria, beginning with raw elements

Actually that's not inconceivable. DNA can be synthesised to order; so can many (or most?) of the chemicals that make up an organism. If you mean how would one do it without a chemical laboratory--if I had a few hundred million years to spare, I'd just put everything together and wait.
 
  • #7
John Park said:
As I said, this seems pretty well understood (with a few gaps) in terms of chemistry and biology.
Not in a chronological sense. "We" are nothing if not biological.

Physics doesn't attempt to explain things that are better understood in other ways. At some point a very detailed analysis becomes too complicated to be meaningful. Much of chemistry can be understood in terms of physical processes and principles (quantum mechanics), and much of biology can be understood in terms of chemical processes. But to try to explain everything in terms of the basic physics would be pointless. It would be like trying to forecast the weather using the quantum theory of nitrogen, oxygen, carbon dioxide and water--even if it could be done, the results would be so complex they would be incomprehensible.
As pointed out above, we know very well what DNA is.
Actually that's not inconceivable. DNA can be synthesised to order; so can many (or most?) of the chemicals that make up an organism. If you mean how would one do it without a chemical laboratory--if I had a few hundred million years to spare, I'd just put everything together and wait.

Nothing real or rational is too complicated to be meaningful, however things can be too complicated for the human mind to understand. 1000 years ago the orbits of planets were too complicated to be meaningful, to a layperson underlying computer code is far too complicated to be meaningful, but still it has meaning and can be deciphered, chiefly because we wrote it. My point is that we are composed of elements that interact with each other to form patterns that form other patterns that form more patterns that end up as us. I am looking far beyond genes, as they are merely combinations of elements that at some point combine like all molecules.
 
  • #8
I'm not sure what you're looking for, or what you mean by "patterns"--structures? cycles? Are you looking for some social/biological theory of everything?

Incidentally, since you focus on DNA: one of the things we know about it is that it is not in complete control--its behaviour and even its form can be influenced by its environment.
 
  • #9
DNA is a long chain of fairly ordinary molecules.
In a way not very different to plastic, but the ordering of the chain is information.
Information that makes copies of itself.
I think I am just about within accepted theories on that
.
 
  • #10
We don't discuss religious or philosophical issues on PF.
And the least we debunk hypothesis that contradict well established knowledge and science.

The subject is highly speculative and for very similar reasons you could as well ask why salt forms crystals.

Thread closed.
 
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1. What is the physics behind DNA?

DNA, or deoxyribonucleic acid, is a complex molecule found in all living organisms. Its structure is composed of two strands twisted together in the shape of a double helix. The physics behind DNA involves the interactions of different forces, such as electrostatic forces and hydrogen bonding, that hold the strands together and determine the stability of the molecule.

2. How does DNA replicate?

DNA replication is a process by which the genetic information stored in DNA is copied to produce new DNA molecules. This process involves the separation of the two strands of DNA and the synthesis of new complementary strands using the existing strands as a template. The physics behind DNA replication involves the unwinding of the double helix and the coordination of different enzymes and proteins to accurately replicate the DNA sequence.

3. Can studying the physics of DNA help us understand genetic diseases?

Yes, studying the physics of DNA can provide valuable insights into the mechanisms of genetic diseases. For example, mutations in the DNA sequence can affect the stability of the molecule and disrupt its function. By understanding the underlying physics, scientists can better understand the causes of genetic diseases and potentially develop new treatments.

4. How does DNA interact with other molecules in the cell?

DNA interacts with other molecules in the cell through various processes such as transcription and translation. During transcription, DNA is used as a template to produce RNA, which then goes on to direct the synthesis of proteins through translation. These interactions involve complex physical processes, such as the recognition and binding of specific molecules to the DNA sequence.

5. What techniques are used to study the physics of DNA?

There are several techniques used to study the physics of DNA, including X-ray crystallography, nuclear magnetic resonance (NMR) spectroscopy, and single-molecule techniques. X-ray crystallography provides a detailed view of the 3D structure of DNA, while NMR spectroscopy can reveal information about the dynamics and interactions of DNA molecules. Single-molecule techniques, such as optical tweezers, can directly measure the physical properties of individual DNA molecules.

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