From: Some statistical properties of regulatory DNA sequences, and their use in predicting regulatory regions in the Drosophila genome: the fluffy-tail test
Functional type
Fluffy tails (F>2)
No fluffy tails (F<2)
Positive rate
Negative rate
Regulatory regions
51
9
85 %
15 %
Exons
1
59
1.6 %
98.4 %
Non-coding presumed non- regulatory
10
50
16 %
84 %