Table 1

Frequency of transmission of the larger and smaller alleles at the Machado-Joseph disease locus

Meiosis		Allele transmitted		χ²assuming 1:1 segregation		p (χ²)
Meiosis		Larger	Smaller	χ²assuming 1:1 segregation		p (χ²)	Not informative	Total typed
MZ
Paternal	23	31	18	72	1.158	0.276
Maternal	28	32	21	81	0.267	0.606
DZ
Paternal	75	80	44	199	0.161	0.688
Maternal	78	86	55	219	0.390	0.532
Total
Paternal	98	111	62	271	0.809	0.368
Maternal	106	118	76	300	0.643	0.423