# biomecular sciences

posted by
**jennfer**
.

I need to calculate beta-galactosidase units for a lab and i am really having a hard time. please show me how to calculate.

A B C

OD 600 .166 .109 .105

0d420

A1 .74

A2 1.40

B1 .16

B2 .33

C1 .10

C2 .11

average of 420 = 1.07-A, .25 = B, .15 = C, and .18 for Lb

Od550

A1 .89

A2 .11

B1 .07

B2 .21

C1 .10

C2 .11

Lb1 .11

Lb2 .18

Average of 550 = 0.50 =A, .14 = B, .11 = C, and .14 = Lb