Pre lab measuring substances
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PRE-LAB: Measuring substances. 1. There will be 3-4 members in each group. 2. Each person will measure one (1) substance in preparation for the lab. . Using a digital balance , measure the following substances: . Carefully seal and label the measured substances in appropriate containers.

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PRE-LAB: Measuring substances

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Pre lab measuring substances

PRE-LAB: Measuring substances

1. There will be 3-4 members in each group.

2. Each person will measure one (1) substance in preparation for the lab.

Using a digital balance, measure the following substances:

Carefully seal and label the measured substances in appropriate containers.

Place all materials in a tray.


Pre lab measuring substances

1Heat 125 ml water. Maintain temperature at 50-55o C.

2-4 Add: a. 10g wheat germ

b. 2g meat tenderizer

c. 5 g baking soda

(stir 3-4 min)

(stir 1 min)

(stir 1 min)

5 Add 1 tblsp of dish soap.

7 Pour cooled liquid into 4 test tubes

Each test tube

1/3 full

stir 2 min

Avoid bubbles

8 Slowly add ethanol using dropper

6 Take out beaker and let it cool down for 10-15 min

5ml (forms a layer 1 inch thick)

9 Extract floating DNA

Clean your station


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