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  1. Khan Academy | Khan Academy

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  2. Semi-conservative replication (video) | Khan Academy

    Here, we focus on the Meselson-Stahl experiment, which proved DNA replication is semi-conservative. In this process, each new DNA pair consists of one old strand and one new strand, ensuring …

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  4. DNA replication (article) | Khan Academy

    During DNA replication, the two strands of the DNA double helix are unwound and separated by enzymes. Each strand then serves as a template, or guide, for synthesizing a new, complementary …

  5. DNA structure and replication review (article) | Khan Academy

    DNA replication occurs through the help of several enzymes. These enzymes "unzip" DNA molecules by breaking the hydrogen bonds that hold the two strands together.

  6. Mode of DNA replication: Meselson-Stahl experiment

    There were three basic models for DNA replication that had been proposed by the scientific community after the discovery of DNA's structure. These models are illustrated in the diagram below:

  7. Podsumowanie wiadomości na temat struktury i replikacji DNA (artykuł ...

    Knowing the structure of DNA unlocked the door to understanding many aspects of DNA's function, such as how it is copied and how the information it carries can be used to produce proteins.

  8. Molekularny mechanizm replikacji DNA (artykuł) | Khan Academy

    Podstawowe mechanizmy replikacji DNA są podobne między organizmami. W tym artykule, skupimy się na tej replikacji DNA, która zachodzi w bakterii E. coli, ale mechanizmy replikacji są podobne u ludzi i …

  9. Gene expression and regulation | AP®︎/College Biology | Khan …

    DNA helps make us who we are, but how exactly does it work? In this unit, we'll examine the nitty gritty of replication, transcription, and translation, and learn how seemingly small mutations can have a big …

  10. Unit 12: DNA as the genetic material - Khan Academy

    Unit 12: DNA as the genetic material About this unit This unit is part of the Biology archive. Browse videos and articles by topic. For our most up-to-date, mastery-enabled courses, check out High …