Table 1.

Class Ia diploid groups match those of class IIα and β

Family 1 groups				Family 2 groups
Frequency	I	IIα	IIβ	Frequency	I	IIα	IIβ
2	a	a	a	3	a	a	a
2*	b	b	b	3	c	b	b
4*	e	a	a	8	d	b	b
2	f	b	b	2	e†	c	c
2	h	c	c	3	e†	a	a
				5	h	a	a
				2	i	d	a
				5	j	c	c

^*These two groups are likely to have the same paternal haplotype based on the sequences of the paternal class IIα allele and unique class Ia α3 domain exon and 3′ UT bands. 

^†Group e may have two fathers.