Table 1.

Contingency table for frequencies of enriched and non enriched GO terms in two gene lists $L_1$ and $L_2$

	Enriched in ${\mathbf{L}}_{\mathbf{2}}$	Non enriched in ${\mathbf{L}}_{\mathbf{2}}$
Enriched in $L_1$	$n_{11}$	$n_{10}$	$n_{1.}$
Non enriched in $L_1$	$n_{01}$	$n_{00}$	$n_{0.}$
	$n_{.1}$	$n_{.0}$	n