Table 1. Transformation rates of E. coli cells treated with different concentrations of ethanol. Results represent the average of three experiments.

Concentration of
ethanol in % (v/v)

Transformation rate
(No. of transformants per µg of DNA)

0.0 (c)

1 X 10⁴

5.0

1 X 10^7*a

7.5

1 X 10^7*a

10.0

1 X 10^10*

12.5

1 X 10^6*

15.0

1 X 10^5*