Parameter	Meaning	Lower limit	Upper limit
$r_{add}^{A,B}$	Contribution to activation of B by A to A-directed B active state	0.1	10
A/A’ activation ratio ${\delta }_{{}_A}$	$\frac{r_{add}^{A,B}}{r_{add}^{A^{\text{'}},B}}$; the factor by which A is more effective at activating B alleles to A-directed active state than A’ to A’-directed active state	0.1	10
A/A’ production ratio ${\delta }_{{}_P}$	$d$; the factor by which the mRNA production rate of B is lower in the A’-directed B active state than in A-directed B active state	0.1	10