Monday, March 12, 2007

Birthday Candle Singapore

the discovery of DNA computing

During recent weeks we have worked with Elisa, our "ssissina" to try to understand the structure of the molecule of life: DNA.

We have built models of double-stranded molecule, using different materials.

La classe è stata divisa in tre gruppi, ognuno dei quali ha lavorato su un particolare modello.

Procedimento per il primo gruppo : Munirsi di due corde; applicare a ciascuna cord a, ad una di stanza fissa, dei pezzi di scotch di un colore diverso da quello della corda (ad example: string bia nec, scotch green), making sure to put the pieces of scotch in mo do that are cir approximately the same location on a rope and on the other. We will have created two chains each consisting of a sugar (str Ishi white) - phosphate (green stripe) DNA backbone. On each string, attach and the nails, blood sugar, caps s ughero using the free end of tappi (non quella con le calamite o il velcro) facendo attenzione a porre i tappi in modo tale che siano circa nella stessa posizione su una corda e sull’altra. In que sto modo i tappi di una corda si legheranno ai tappi dell’altra corda per complementarietà.

I tappi rappresentano le basi azotate che sporgono dalla catena e che si legano fra loro solo se sono complementari.



procedure for the second group : Cut the cardboard along the dotted lines. Paste the parties as obtained. http://www.csiro.au/resources/pfky.html : this is the site where you can go to download the data to be printed and cut out for your model



procedure for the third group : Decide on the colors that will form two base pairs (example: red + white + yellow and green); join in pairs with a toothpick candies, matching the color scheme selection, arrange them on the table if they were the rungs of a ladder, the rungs to join 2 strips of licorice.

address below to find similar structures made of DNA with the use of candy

http://library.thinkquest.org/19037/making_a_candy_model. html



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