Table 1.

Frequency of ancestral bases in AluYg6 elements with one diagnostic change.

Position	Ancestral base	Yg6 base	Nature of back mutation	Occurrence
52	G	A	Transition	8
142	G	A	Transition	10
151	G	C	Transversion	4
172	T	A	Transversion	4
228	C	T	Transition	7
270	G	A	Transition	13