Base which pairs with adenine - thymine, Base which pairs with guanine - cytosine, Enzyme which adds free nucleotides to the 3' end of a forming strand - DNA Polymerase, Needed to start replication - primers, Bond which forms between DNA bases - Hydrogen, Found at the 5' end of a DNA strand - Phosphate, Found at the 3' end of a DNA strand - Deoxyribose Sugar, The way DNA strands run - 5' to 3', The end of a DNA strand which nucleotides are added to - 3', Structure of DNA - Double stranded helix, The repeating unit which forms a DNA strand - nucleotide, Enzyme which joins fragments of the lagging strand - Ligase, The strand which is replicated in fragments - Lagging, The strand which is replicated continuously - Leading, Used to amplify a target sequence of DNA - PCR, Uses for PCR - solve crimes, paternity testing, diagnose genetic disorders, When does DNA replication take place - Before cell division, DNA is heated to 92-98 degrees celsius to... - separate the strands, DNA is cooled to 50-65 degrees celsius to... - allow primers to bind, DNA is cooled to 70-80 degrees celsius to... - allow DNA polymerase to replicate the region of DNA,

1.2 DNA Structure and Replication

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