Table 2.

Penetrance table for the jointly dominant-dominant model, where α and θ are defined in Table 1.

	bb	Bb	BB
aa	$\frac{\alpha }{1+\alpha }$	$\frac{\alpha }{1+\alpha }$	$\frac{\alpha }{1+\alpha }$
Aa	$\frac{\alpha }{1+\alpha }$	$\frac{\alpha (1+\theta )}{1+\alpha (1+\theta )}$	$\frac{\alpha (1+\theta )}{1+\alpha (1+\theta )}$
AA	$\frac{\alpha }{1+\alpha }$	$\frac{\alpha (1+\theta )}{1+\alpha (1+\theta )}$	$\frac{\alpha (1+\theta )}{1+\alpha (1+\theta )}$