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Home Page | Add to Favorites | Print Page | Best Viewed in Mozilla Firefox (1024X768) | Steps of DNA ReplicationThis page summarizes the process of DNA replication in eukaryotic cells, by dividing it into simpler steps.Note: You may click on some parts of the images to get a better description. Step 5
Step 6 1) DNA Ligase follows DNA Polymerase I, and joins the Okazaki fragments into one strand by adding phosphates in the remaining – phosphodiester bonds. 2) DNA Polymerase reaches to an end of the strands. When the last RNA primer is removed, it is not possible for the DNA Polymerase I to seal the gap. Therefore, the end of the original strand where the last primer binds is not replicated. These ends consist of non-coding DNA that contains repeated sequences which are called telomeres. 3) Exonuclease searches the replicated strands for any errors and fixes them by replacing the wrong nucleotides. A part of the telomeres is removed as well.
Step 7 1) DNA replication is completed, and a newly formed strand can now be used as the genetic material for a new cell which is created by mitosis.
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