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DNA.

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Presentation on theme: "DNA."— Presentation transcript:

1 DNA

2 Introduction DNA = Deoxyribonucleic Acid
Genetic blueprint of an individual All living things have DNA Controls cell activities Located in the nucleus

3 History Discovered by Watson and Crick (1953)

4 Structure DNA is “Double Helix” Spiral Double Stranded Twisted Ladder

5 Structure Made up of smaller units called nucleotides Phosphate
Nitrogenous Base 5 Carbon Sugar

6 Nitrogenous Bases 4 types A, T, C, G A bonds with T C bonds with G

7 Nucleotides fit together to Make DNA

8 DNA Building Contest Work in Partners Bring supplies
Construction must begin in class (not before) Time limit – 40 minutes Judging will take place during last part of class


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