Instruct: Identify the main category of Biorxiv papers based on the titles
Query: Transcriptional profiling of transport mechanisms and regulatory pathways in rat choroid plexus
21
The categories of this paper are: toxicology
12
The categories of this paper are: behavior
11
The categories of this paper are: cognition
13
The categories of this paper are: animal
24
The categories of this paper are: cancer
32
The categories of this paper are: zoology
19
The categories of this paper are: epidemiology
23
The categories of this paper are: immunology
31
The categories of this paper are: paleontology
14
The categories of this paper are: biophysics
17
The categories of this paper are: molecular
29
The categories of this paper are: education
30
The categories of this paper are: scientific
9
The categories of this paper are: synthetic
6
The categories of this paper are: plant
27
The categories of this paper are: pathology