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So what?It's not as of any of that is news.
Think logically. If DNA does not work without water, and no other solvent can be used as a substitute, why do textbooks still insist that the DNA be shown in its dehydrated form, while also describing this as the template material? This is alternate theory and not fact.
If DNA does not work without water, and no other solvent can be used as a substitute, why do textbooks still insist that the DNA be shown in its dehydrated form
The Covid 19 virus would not be a problem without water,
Evolution was driven by the needs of water,
Quote from: puppypower on 20/03/2021 09:37:48Think logically. If DNA does not work without water, and no other solvent can be used as a substitute, why do textbooks still insist that the DNA be shown in its dehydrated form, while also describing this as the template material? This is alternate theory and not fact.I assume this is the kind of diagram you are talking about? https://simple.wikipedia.org/wiki/DNA#/media/File:DNA_chemical_structure.svgIt's not an alternative theory. It's a simplification to make it easier to understand. Sticking a bunch of H2O molecules on that diagram wouldn't really add anything. One could just as easily argue that the diagram is inaccurate because it's a two-dimensional drawing and thus doesn't show DNA's true shape, or that molecules aren't actually a bunch of letters connected by lines. It's not like that matters, because biochemists already know that DNA is suspended in water in cells. It's not exactly a secret.
Quote from: puppypower on 20/03/2021 09:37:48 If DNA does not work without water, and no other solvent can be used as a substitute, why do textbooks still insist that the DNA be shown in its dehydrated formThey don't.The dehydrated form is different.They just don't bother showing the water because everyone knows that it is there, and it clutters the picture.You may notice that chemists are even lazier; we often don't bother to draw hydrogens in molecules. https://en.wikipedia.org/wiki/Paraffin_wax#/media/File:Hentriacontane.svgThey are taken as read by the experienced users.
Are You complaining that the Artists are drawing a Dolphin but not the Sea that it lives in?
Chemists also know that different chemical reactions do better in different solvents
, I started a parallel water analysis,
The analogy would be like showing only the reactive site of an enzyme, and ignoring the rest of the enzyme, to simplify the drawing.
This would create the impression the rest of the enzyme is there for decoration and can be ignored. In reality, the rest of the enzyme plays a critical integrated part in the enzymatic affect, which would not occur without it. The same is true of DNA and water.
Quote from: puppypower on 23/03/2021 11:09:14The analogy would be like showing only the reactive site of an enzyme, and ignoring the rest of the enzyme, to simplify the drawing.Depending on what is being taught at that moment, that could be a perfectly acceptable thing to do.Quote from: puppypower on 23/03/2021 11:09:14This would create the impression the rest of the enzyme is there for decoration and can be ignored. In reality, the rest of the enzyme plays a critical integrated part in the enzymatic affect, which would not occur without it. The same is true of DNA and water.No, it wouldn't. If you are going to go down that track, then you might as well argue that showing DNA without showing the histones, enzymes and everything else in the cell gives the impression that DNA works all by itself without any of the other cellular machinery required. It's extraordinarily nit-picky and pointless. Anyone who actually becomes a biologist will know that DNA is in water.
Do you honestly think that lack of water molecules on a diagram of DNA is a genuine science problem? Please explain how that has caused observable problems in science.
You are still being nitpicky. Do you honestly think that lack of water molecules on a diagram of DNA is a genuine science problem? Please explain how that has caused observable problems in science.
Quote from: KryptidDo you honestly think that lack of water molecules on a diagram of DNA is a genuine science problem? Please explain how that has caused observable problems in science.Getting the right level of hydration was critical in Franklin & Gosling getting the famous photo 51, which first revealed DNA's spiral structure. - At different hydration levels, DNA forms different structures- But ever since then, the presence of the right amount of water in a living cell was a given See: https://en.wikipedia.org/wiki/Molecular_models_of_DNA#DNA_structure_determination_using_molecular_modeling_and_DNA_X-ray_patterns PS: I would be fascinated to see the structure of tardigrade DNA when in it's dehydrated state. Apparently, tardigrades can survive in "suspended animation" for years with only 1% of the normal amount of water in their cells.https://en.wikipedia.org/wiki/Tardigrade#Physiology
Both are expressed in the pH affect.
Quote from: puppypower on 23/03/2021 11:09:14, I started a parallel water analysis,What did you actually do?
This has been taboo since the 1950's.
Getting the right level of hydration was critical in Franklin & Gosling getting the famous photo 51, which first revealed DNA's spiral structure.