DNA Replication

Descripción

AS - Level (2. Nucleic acids) Biology Mapa Mental sobre DNA Replication, creado por phoebepowe el 29/12/2015.
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Mapa Mental por phoebepowe, actualizado hace más de 1 año
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Creado por phoebepowe hace casi 9 años
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Resumen del Recurso

DNA Replication
  1. Nuclear division - Is the process by which the nucleus divides. There are two types of nuclear division, mitosis and meiosis
    1. Cytokiesis - Follows nuclear division and is the process by which the whole cell divides
      1. Before the nucleus divides its DNA must be replicated
      2. DNA helicase causes the two strands of DNA to separate by breaking hydrogen bonds.
        1. The free nucleotides that have been activated bind specifically to their complementary bases.
          1. Once the activated nucleotides are bound they are joined together by DNA polymerase, which makes phosphodiester bonds
            1. Finally all the nucleotides joined to form a complete polynucleotide chain using DNA polymerase
        2. Semi-conservative replication
          1. The four types of nucleotide bases of adenine, guanine, cytosine or thymine must be present.
            1. Both strands of DNA molecule act as a template for the attract
              1. The enzyme DNA polymerase
                1. A source of chemical energy is required to drive the process
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