Table 1. Genotypes in the half-sib offspring from all possible gamete combinations produced from a heterozygote sire at one SNP, M/m, and homozygote at the other SNP, T/t.

	Sire(TM/Tm)
Dam	TM	Tm
G freq	1/2	1/2
TM fTM	TTMM	TTMm
	$\frac{1}{2}$fTM	$\frac{1}{2}$fTM
Tm fTm	TTMm	TTmm
	$\frac{1}{2}$fTm	$\frac{1}{2}$fTm
tM ftM	TtMM	TtMm
	$\frac{1}{2}$ftM	$\frac{1}{2}$ftM
Tm ftm	TtMm	Ttmm
	$\frac{1}{2}$ftm	$\frac{1}{2}$ftm

G, gametes; freq, frequency.