1. DNA Structure Section

3. Structure of DNA
DNA is a polymer - a very large molecule made from many repeating smaller molecules called monomers.
The monomer (small building block) of DNA is called a nucleotide 
Each nucleotide is made of a deoxyribose sugar molecule, a phosphate group and one of 4 types of base.

4. There are 4 types of base: Adenine, Guanine, Cytosine and Thymine (but we can just call them A,G,C and T) A and T are complementary (opposite) shapes and bond together C and G are complementary (opposite) shapes and bond together

5. You will need 10 deoxyribose sugars and 10 phosphates
Step 1:
Build 2 DNA backbones
You will need 10 deoxyribose sugars and 10 phosphates

6. Add a base (A,C,G or T) to each deoxyribose on one strand
Step 2:
Add a base (A,C,G or T) to each deoxyribose on one strand
You then need to add the opposite base on the other strand and tape the bases together

7. What does DNA code for?
Revision from Year 10:

9. How does DNA code for amino acids?

10. GTT on the DNA strand codes for Valine amino acid
What does DNA code for?
A sequence of three bases is the code for a particular amino acid.
The order of bases controls the order in which amino acids are assembled to produce a particular protein
A gene is a section of DNA that codes for one protein
CAT on the DNA strand codes for Histidine amino acid
CAAon the DNA strand codes for Glutamine amino acid