Y9 - DNA EXTRACTION - BIOLOGY

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Last updated 4:39 PM on 10/14/26
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6 Terms

1
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What is the first step when extracting DNA from fruit?
Mash the fruit to break up the tissue.
2
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Why is detergent used during DNA extraction?
It helps break down cell and nuclear membranes.
3
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Why is salt solution used during DNA extraction?
It helps the DNA separate from other cell components.
4
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Why is the fruit mixture filtered?
To remove solid pieces of fruit.
5
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Why is cold ethanol added during DNA extraction?
DNA precipitates out and becomes visible.
6
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What does extracted DNA often look like?
White, cloudy strands or clumps