CB3bii Flashcards

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1
Q

Describe the method used to extract DNA from fruit

A

Place a piece of fruit in a beaker and crush it
Add detergent and salt mix
Filter the mixture and collect the liquid in a test tube
Pour chilled ethanol into the test tube
DNA precipitates forming a fibrous white solid
Use a glass rod to collect the DNA sample

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2
Q

Why is detergent added to the crushed fruit

A

It disrupts the cell membranes, releasing DNA into solution

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3
Q

Why is salt added to the crushed fruit

A

Salt encourages the precipitation of DNA

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