20.109(F15): TA's notes for module 3
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Day 1
The week preceding the lab:
- Make LB:
- 10 g tryptone
- 5 g yeast extract
- 10 g NaCl
- 1 L deionized water
- autoclave 30 minutes with stirbar.
On the instructors' bench:
- 50 mL conical tubes
- 25 mL pipets
- 2 mL eppendorf tubes
- TBS: 500 mL
- PEG/NaCl: 500 mL
- quartz cuvettes
On the students' bench:"
- bucket of ice
- 2 x 40 mL overnight culture of XL1-Blue infected with M13 phage
- 250 mL erlenmeyer flask
By the scale:
- (NH4)2Fe(SO4)2
In 4 °C fridge:
- orbital shaker (speed 120)