Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A model for mutation in bacterial populations   We describe the evolution of $E.coli$ populations through a Bak-Sneppen type
model which incorporates random mutations. We show that, for a value of the
mutation level which coincides with the one estimated from experiments, this
model reproduces the measures of mean fitness relative to that of a common
ancestor, performed for over 10,000 bacterial generations.

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs