1. RHS
SCIENCE
DNA Replication
Animation factory

2. RECALL
DNA is made up of a series of monomers called NUCLEOTIDES

3. The backbone of the DNA chain is formed by the
Sugar
Phosphate

4. The “rungs” of the ladder are made of bases
A - T G - C
The bases are held together by hydrogen bonds

5. The 2 DNA chains are joined together forming a
Double helix

6. DNA Replication
Is when DNA is copied into DNA
Occurs in the nucleus

7. DNA Replication DNA unwinds into 2 strands
Each strand acts as a template for building a new strand

8. Unwound strands produced by breaking H bonds between base pairs
New strands made by adding nucleotides

9. DNA Replication
DNA polymerase joins free nucleotides to the template and assembles each into strands

10. DNA Replication

11. SELF TEST Which bonds are broken during replication? Hydrogen bonds
How many DNA molecules in total would there be after DNA replication occurs? 2

12. BYE