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MATERIALS

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1-2

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Tilt the beaker and pour as much alcohol

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Tilt the beaker and pour as much alcohol

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The DNA of the strawberry cells will begin to coagulate

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The DNA of the strawberry cells will begin to coagulate

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yes, The DNA is a molecule, present in all living beings, that contains the biological instructions that determine that each species is different, and that each individual is unique.

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2: What are the nitrogenous bases of DNA and how are they put together?

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2: What are the nitrogenous bases of DNA and how are they put together?

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In each sugar, one of the four nitrogenous bases is anchored: adenine (A), cytosine (C), guanine (G) or thymine (T). The two strands are held together thanks to the hydrogen bonds between the complementary bases, that is, adenine with thymine, and cytosine with guanine.

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3: Why it’s necessary to smash the strawberries? 

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3: Why it’s necessary to smash the strawberries? 

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This causes the cells to open up and the DNA to be released.

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4: What is the role of the dish soap, the salt, and the alcohol?

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4: What is the role of the dish soap, the salt, and the alcohol?

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These circumstances make strawberry DNA easy to extract and see. Regarding the components present in the extraction solution: the soap helps to dissolve the cell membranes and the salt is added to break the protein chains that join the nucleic acids, releasing the DNA chains.

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5: Put the “X” In one of the next. All blood cells have DNA? YES_X_NO ____

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5: Put the “X” In one of the next. All blood cells have DNA? YES_X_NO ____

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6: What is the shape of the DNA molecule?

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6: What is the shape of the DNA molecule?

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The DNA molecule consists of two strands that wind together to form a double helix structure. Each chain has a central part made up of sugars (deoxyribose) and phosphate groups.

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DNA is made up of basic chemical components called nucleotides. These building blocks include a phosphate group, a sugar group, and one of four types of alternative nitrogenous bases.

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8. Do you think this experiment could work with cells from another organism? Why?

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8. Do you think this experiment could work with cells from another organism? Why?

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NO, because the Strawberries are ideal for doing this experiment for two reasons: they are the fruit with which more DNA is obtained and, in addition, they are octoploid, that is, they have eight identical sets of chromosomes (human cells are diploid, that is, have two sets of chromosomes except for gametes). These circumstances make strawberry DNA easy to extract and see.