DNA- DNA basically what makes you, YOU! Its inside every nucleus of 
                 your euarkaryotic cells.

            - Inside every DNA there is genetic and hereditary information

            - DNA has a very unique design to it, it looks like a twisted ladder
               and that's why it is called like that and it is also called a double
                helix.

            - The two backbones of the DNA structure are made from sugar 
                and phosphate molecules.

            - The bases in the middle and made out of nitrogen and there is
                four kinds of them.

             a) Adenine

                                        > Pyrimidines = Single Ring

                    b) Cytosine

               c) Thymine

                                        >Purines = Double Ring

               d) Guanine

            - These four nitrogen bases don't just bond with each other in 
                 random order, they only pair with a certain other base.

              a) Adenine pairs with Thymine and with no other 

                   b) Cytosine pairs with Guanine and with no other 
             - There are many important people that take part with the history
                 of DNA.
           - First there is Alfred Hershey and Martha Chase. What they did 
                 is confirm that DNA was genetic material.
            - Second, there is Rosalind Franklin. What she discovered how
                 DNA looked when she took a x-ray picture of it.

            - The final two were Francis Crick and James Watson. What they
                did was build the first model of DNA out of metal and wood.