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Table 2. Expectation of average fragment lengths generated by restriction enzymes in random sequences of different base composition.
 
A+T content
Enzyme (recognition site)
20%
40%
60%
80%
Hae III (GG^CC)
0.04 kb
0.12 kb
0.63 kb
10.1 kb
Nae I (GCC^GGC)
0.24 kb
4.57 kb
15.6 kb
1.0 mb
Pvu II (CAG^CTG)
3.91 kb
3.09 kb
6.94 kb
62.5 kb
Bsa AI (YAC^GTR)
2.40 kb
1.11 kb
1.11 kb
2.40 kb
Eco RV (GAT^ATC)
62.5 kb
6.94 kb
3.09 kb
3.91 kb
Ssp I (AAT^ATT)
1.0 mb
15.6 kb
4.57 kb
0.24 kb
PmeI (GTTT^AAAC)
6.25 mb
173 kb
34.3 kb
24.4 kb
Swa I (ATTT^AAAT)
100 mb
0.39 mb
15.2 kb
1.52 kb
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