Organism
|
Red color after adding sol'n A & B
|
Red color after adding zinc
|
Nitrate, Nitrite, or Dinitrogen gas?
|
A
|
+
|
–
|
|
B
|
+
|
–
|
|
C
|
–
|
–
|
|
D
|
–
|
+
|
|
Organism
|
Durham Acid+Gas
|
Pyrogallic acid Growth
|
Plate growth in Gas Pak
|
1
|
+
|
–
|
–
|
2
|
–
|
–
|
–
|
3
|
–
|
+
|
+
|
Individual
|
CFU
|
% Transmission
|
1
|
1000
|
|
2
|
800
|
|
3
|
400
|
|
4
|
40
|
|
Organism
|
Endospores?
|
CFU before heat treatment
|
CFU after high heat treatment
|
A
|
Yes
|
500
|
10
|
B
|
No
|
200
|
500
|
C
|
Yes
|
500
|
500
|
PLATE
|
COLOR OF COLONY
|
GENE
|
MacConkey-lactose
|
White
|
Lac Z
|
MacConkey-lactose
|
White
|
Lac Y
|
MacConkey-lactose + IPTG
|
White
|
Lac Z
|
MacConkey-lactose + IPTG
|
Red
|
Lac Y
|
SAMPLE FLASK
|
TUBE 1
|
TUBE 2
|
TUBE 3
|
TUBE 4
|
|
9.9mL
|
9.9mL
|
9mL
|
9mL
|