XL Spreadsheets for Natural Selection Laboratory - Bacteria and Antibiotics

Evolutionary Biology BI 25, Saint Anselm College

 

Sample            
             
             
Group Jon, Mary   See calculations in manual   See calculations in manual  
Bacteria E. coli          
             
Plate # Antibiotic Agar Plate Diameter (cm) Agar Plate area Diamter of antibiotic circle (cm) Antibiotic circle area Antibiotic area/Agar Plate area = s coefficient
1 chl 20 314.2857143 2 3.142857143 0.01
2 tetra 20 314.2857143 1.1 0.950714286 0.003025
3 penic 20 314.2857143 10.9 93.35071429 0.297025
4 erythr 20 314.2857143 3.5 9.625 0.030625
5 amp 20 314.2857143 2.2 3.802857143 0.0121
6 other 20 314.2857143 1 0.785714286 0.0025
             
Group            
Bacteria            
             
Plate # Antibiotic Agar Plate Diameter (cm) Agar Plate area Diamter of antibiotic circle (cm) Antibiotic circle area Antibiotic area/Agar Plate area = s coefficient
1 chl          
2 tetra          
3 penic          
4 erythr          
5 amp          
6 other