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Leopoldo Alvarado

Period: #2

March 1, 2022

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DNA stands for Deoxyribonucleic Acid. DNA is made up of adenine, guanine, cytosine, and thymine. Nucleotides are made up of adenine, adenine, guanine, thymine, or cytosine in DNA, and in RNA adenine, guanine, uracil, or cytosine. The base pair rule of DNA would be that adenine always pairs up with thymine and cytosine always pares up with guanine. The nitrogen bases are attached to C1' of deoxyribose through a glycosidic bond. DNA looks like a double helix that looks like ladder that has been twisted.

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1. Get all materials that are needed

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2. Smash straw in bag
3. Add DNA extraction buffer and smash it for another while.

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Materials Used:

-  Heavy duty ziplock bag

- 1 strawberry

- Googles

- 10 mL DNA extraction buffer (soapy, salty water)

- Cheesecloth

- Funnel

- 20 mL test tube & test tube stand

- Stir stick

- 10 mL ethanol (FREEZER)

- Paper towels

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4. Assemble your filtration gear as shown in the diagram.

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5. After assembling your filtration pour the smashed strawberry in the filtration.

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What I learned about DNA was that when there is a large amount of it in one spot it will be visible to the human eye. Something that I would do different if I'd do this again would be probably use more strawberries so that there is more DNA and so that it's larger. I guess that the next thing that I would do would be to check if there is DNA in other foods and experiment with other foods. Two traits expressed in a strawberry would be size and sweetnees.

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First we put the strawberry inside the bag and smash it as much a you can. After smashing it for sometime we added the DNA extraction and smashed it for another while. Then we assembled the our filter and poured in the strawberry trying to get as much liquid through the cheesecloth. After getting as much liquid through the cheesecloth we put it in smaller test tube and then added ethanol to filter strawberry to get the DNA. Then we put in a string stick and pulled it out and it had all the strawberry's DNA sticked on it.

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6. After filtering it and getting as much liquid out pour it into the other test tube

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7. Then you pour the ethanol and stick in your string stick and take it out with the strawberry DNA already attached to it.