Strawberry dna extraction lab middle school

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Key conceptsDNAGenomeGenesExtractionLaboratory techniquesIntroductionHave you ever wondered how scientists extract DNA from an organism. Overall, DNA tells an organism how to develop and function, and is so important that this complex compound is found in virtually every one of its cells. Each cell has an entire copy of the same set of instructions, and this set is called the genome. Scientists study DNA for many reasons: They can fiIn this easy and fun life science lab activity, students will extract DNA from strawberries, but bananas, kiwis or onions will also work.

Since DNA is a large macromolecule, enough can be extracted from a small amount of plant material to be easily visible. MethodAhead of time, chill the isopropyl alcohol in the freezer or in an ice water bath.1. Place several strawberries into a plastic Ziploc bag. It is not necessary to remove the stems. Add about 1 teaspoon of water per strawberry, enough to make it slightly lStrawberry DNA Extraction is a fun experiment that you can perform using everyday materials.

The purpose of this experiment is to develop the interest, knowledge and skills of our students in the areas of biotechnology and life sciences. Scientists study DNA for many reasons: They can fistrawberryDNA StrawberryDNA ExtractionAdaptedfrom a lab by C. SheldonIntroduction:DNA is found in cells fromAnimals and Plants. DNAExtraction Buffer ( One liter: mix100 ml of shampoo (without conditioner), 15 g NaCl,900 ml water OR 50 ml liquiddishwashing detergent, 15 g NaCl and 950 ml water)9.

Ice-coldIn this easy and fun life science lab activity, students will extract DNA from strawberries, but bananas, kiwis or onions will also work. Vocabulary words:DNA, nucleus, extraction, spooling, What you need:- test tubes with 5ml of detergent solution - capped tubes with 10ml of rubbing alcohol - bottle with prepared salt solution - dixie cups - plastic coffee stirrer - flat wood sticks - - small Eppendorf tube - pipettes Grouping:Students can work in pairs or as individuals. To allow each student to handle materials groups should not be larger than that.

Setting:Classroom or laboratory Time needed:One class period (40- minutes). Students will observe their own DNA.




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