Results of the Luria - Delbruck
fluctuation experiment
|
Individual Cultures
|
Bulk culture
|
|
Tube #
|
Tonr
|
Sample #
|
Tonr
|
|
I
|
1
|
I
|
14
|
|
II
|
0
|
II
|
15
|
|
III
|
3
|
III
|
13
|
|
IV
|
0
|
IV
|
21
|
|
V
|
0
|
V
|
15
|
|
VI
|
5
|
VI
|
14
|
|
VII
|
0
|
VII
|
26
|
|
VIII
|
5
|
VIII
|
16
|
|
IX
|
0
|
IX
|
20
|
|
X
|
6
|
X
|
13
|
|
XI
|
107
|
|
|
|
XII
|
0
|
|
|
|
XIII
|
0
|
|
|
|
XIV
|
0
|
|
|
|
XV
|
1
|
|
|
|
XVI
|
0
|
|
|
|
XVII
|
0
|
|
|
|
XVIII
|
64
|
|
|
|
XIX
|
0
|
|
|
|
XX
|
35
|
|
|
|
Mean
|
11.3
|
|
16.7
|
|
Variance
|
694
|
|
15
|
Note the extreme variation ("fluctuation") in the number of resistant cells among
individual culture experiments (variance >> mean),
and their relative
uniformity among bulk culture experiments (variance ~ mean).
All text
material
©2005 by Steven M. Carr