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STRAWBERRY DNA EXTRACTION LAB    SECTION 1 

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STRAWBERRY DNA EXTRACTION LAB    SECTION 1 

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Name Kevin Torralba
Period: 2
March 16, 2022

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DNA stands for deoxyribonucleic acid and is made up of nucleotides. Nucleotides are made up of phosphate, sugar, and nitrogen bases. The base pair rules are A=T and G= C. Nitrogen Bases are connected by special chemical bonds called hydrogen bonds. DNA looks like watery slime and gooey.

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STRAWBERRY DNA EXTRACTION LAB SECTION 3 

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STRAWBERRY DNA EXTRACTION LAB SECTION 3 

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STRAWBERRY DNA EXTRACTION LAB SECTION 4 

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STRAWBERRY DNA EXTRACTION LAB SECTION 4 

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heavy duty ziploc bag

1 strawberry

goggles

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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STRAWBERRY DNA EXTRACTION LAB SECTION 5 

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STRAWBERRY DNA EXTRACTION LAB SECTION 5 

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Smash and grind the strawberry in the Ziploc bag

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2. Pour alcohol into ziploc

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3. Filter strawberry slurry through cheesecloth

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4. Pour strawberry juice from container into tube

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5. Use ethanol from another tube and pour it into the tube with the strawberry

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6,7. Get stick. leave stick inside tube for about 30 seconds and then extract it, extracting the stick with the DNA

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STRAWBERRY DNA EXTRACTION LAB SECTION 6 

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STRAWBERRY DNA EXTRACTION LAB SECTION 6 

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I smashed the strawberry to break open the cells. Afterwards, I mushed the strawberry with salty/soapy solution to break up proteins & dissolve cell membranes. Next, I filtered the strawberry slurry through cheesecloth to break up proteins & dissolve cell membranes. Lastly, I added an addition of ethanol to the filtered extract so that the DNA could precipitate from the solution.

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STRAWBERRY DNA EXTRACTION LAB SECTION 7 

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STRAWBERRY DNA EXTRACTION LAB SECTION 7 

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What we did in this lab is smash the strawberry in the ziploc bag, then poured it into a tube and from then pour ethanol to extract the strawberry's DNA. What I learned about DNA is that it is not invisible to the naked eye but if gathered together it becomes visible. What I would do differently in this experiment if given another chance is breaking down the strawberry a bit more. After extracting the DNA I would observe the DNA and throw away stuff that isn't needed anymore. Two traits that are expressed in a strawberry are its size and color