wellwisher
Well-Known Member
Scientists have determined the water and not the hydrogen bonding between base pairs is what holds the DNA double helix together. This totally changes the way we should conceptually approach DNA. It also makes most textbook pictures of the DNA double helix obsolete, since these old picture ignore the water which is critical to the double helix structure. Those old pictures are now fake science. I have been warning this for years.
An overview of this provocative discovery can be read at the India Times at; DNA’s double helix is held together by water - Times of India
The actual published science paper can be found at; https://www.pnas.org/doi/abs/10.1073/pnas.1909122116
In simple terms, it was widely believed since the discovery of DNA, that the DNA double helix was held together by the hydrogen bonds between the base pairs within the DNA double helix. More recent discoveries showed that the DNA double helix was not the only double helix in DNA. The DNA also contained a double helix of water in the major and minor grooves of the double helix. This is in the article below from 2017, with the earliest clues in reference #3, dating back to 1992.
https://pubs.acs.org/doi/10.1021/acscentsci.7b00229
The more recent team who overcame a dogma of science; earth is not flat, was able to show the base pairs are actually forced to stack onto each other, like coins, due to hydrophobic affects between the bases and the inner water. The affect is similar to mixing some oil into water. The oil will want to bead up to separate from the water and lower the surface tension.
In the case of the DNA, the base pairs are like oil and the inner water causes them to bead up and stack. This causes the beads of oil; stacked base pairs to become dry; pure oil, allowing the hydrogen bonding to become more efficient.. The hydrogen bonding is more of an affect of the hydrophobic action of the water, than the cause of the double helix.
Water has it finger in every pie within life. I hope the powers to be change the DNA pictures in textbooks so students can ask the right questions and not get stuck in misinformation based reasoning. But then again the double helix of water in DNA has been known since 1992 and if you mention it, you can get gang tackled or censored at science sites What is up with that? Why isn't that better known and taught?
An overview of this provocative discovery can be read at the India Times at; DNA’s double helix is held together by water - Times of India
The actual published science paper can be found at; https://www.pnas.org/doi/abs/10.1073/pnas.1909122116
In simple terms, it was widely believed since the discovery of DNA, that the DNA double helix was held together by the hydrogen bonds between the base pairs within the DNA double helix. More recent discoveries showed that the DNA double helix was not the only double helix in DNA. The DNA also contained a double helix of water in the major and minor grooves of the double helix. This is in the article below from 2017, with the earliest clues in reference #3, dating back to 1992.
https://pubs.acs.org/doi/10.1021/acscentsci.7b00229
The more recent team who overcame a dogma of science; earth is not flat, was able to show the base pairs are actually forced to stack onto each other, like coins, due to hydrophobic affects between the bases and the inner water. The affect is similar to mixing some oil into water. The oil will want to bead up to separate from the water and lower the surface tension.
In the case of the DNA, the base pairs are like oil and the inner water causes them to bead up and stack. This causes the beads of oil; stacked base pairs to become dry; pure oil, allowing the hydrogen bonding to become more efficient.. The hydrogen bonding is more of an affect of the hydrophobic action of the water, than the cause of the double helix.
Water has it finger in every pie within life. I hope the powers to be change the DNA pictures in textbooks so students can ask the right questions and not get stuck in misinformation based reasoning. But then again the double helix of water in DNA has been known since 1992 and if you mention it, you can get gang tackled or censored at science sites What is up with that? Why isn't that better known and taught?