1. DNA Replication – 2 12 BIO 9 May 2012

2. Matching terms - Quiz 1.the outcome of DNA replication 2.half of each replicated DNA is ‘parent’ DNA 3.the replication of DNA happens directly before this event 4.splitting of the DNA double helix between bases 5.consists of a base, phosphate and sugar joined together 6. DNA strand made in one lengthy section during DNA replication 7.DNA made in short sections during DNA replication 8.strands of DNA are unwound by these molecules 9.mitosis occurs at a higher rate in these periods 10. one of a pair of attached structures following chromosome duplication chromatid enzymes unzipping semi-conservative replication leading strand growth & repair Nucleotide cell division lagging strands exact copy of itself

3. DNA

4. Semi-conservative replication One ‘old’ and one ‘new’ strand

5. Semi – Conservative DNA replication

6. Mini quick write Describe the purpose of DNA replication prior to cell division. Key words Exact copy Cell division Full set Genetic material

7. Quick write Explain DNA replication using diagrams and explain why the process is known as semi- conservative. What are the benefits of a semi- conservative process?