1. DNA replication

2. What is DNA replication? It is the process by which DNA produces a new copy of an organism’s genetic information When does DNA replication occur? It occurs when a cell needs to be replaced Cells are replaced when… 1.They are old and worn out 2.They’ve been damaged 3.They’re too large to work efficiently

3. Where does DNA replication take place? It occurs in the nucleus of eukaryotic cells And in the cytoplasm of prokaryotic cells

4. Two views of DNA replication DNA replication

5. How does DNA replication occur? The hydrogen bonds that hold together the nitrogen bases are broken by a special enzyme The DNA molecule will unwind Two new free nucleotide sequences bind to the complementary strands of DNA DNA polymerase, the principal enzyme in DNA replication binds the strands together