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    Home > Biochemistry News > Biotechnology News > U.S. experts capture close-range HD codeless images copied by individual DNA molecules.

    U.S. experts capture close-range HD codeless images copied by individual DNA molecules.

    • Last Update: 2020-08-30
    • Source: Internet
    • Author: User
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    Recently, Dr. Stephen, a scientist at the University of California, California, usa, published the results in the top journal Cell, saying that his team miraculously recorded close-range, high-definition, codeless images copied by individual DNA molecules.
    fact that human more than half a century of "imagining" model is a lot of mistakes, this discovery completely rewrites our high school biological knowledge, upending the entire scientific community! In the traditional concept, the double helix structure of DNA is interwoven into chains by four different bases.
    Under the conditions of following the principle of base complementarity pairing, semi-reserved replication and semi-non-continuous replication, substances such as derivease, DNA polymerase and connective enzyme act on the chain structure respectively, so that the newly produced genetic material is fully matched with the mother.
    most characteristic of these phenomena is that DNA polymerases located on the lead and lag chains coordinate with each other to some extent to avoid triggering mutations during de-rotoring. The
    team's researchers took individual DNA molecules from E. coli and applied colorants, and to the scientists' shock, the real-time footage showed that real DNA was replicating, that the enzymes were not in harmony with each other, but that each single chain was highly independently replicated, full of randomness, and finally perfectly matched to the mother chain! In the lens, sometimes the lag chain stops running, but the leading chain continues to grow, and sometimes one of the chains suddenly starts copying at 10 times normal speed, without any regularity! In addition, due to a lack of coordination, DNA can even kick open the cyclytic enzyme to pause replication so that the DNA polymerase can catch up.
    fact is enough to trigger a rethinking of biological genetic stability in the scientific community! If the two chains operate independently, how does the unwired DNA know to ensure that the replication process is carried out in an orderly manner? And how do you control replication speed at a specific point in time to avoid genetic mutations? Life is really too mysterious, perhaps mankind is still a long way from the truth! Source: Test Medicine Network.
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