Table 2. Individual changes introduced into the lacZα indicator gene of pSJ4 by human Prim-Pol are shown.

Mutation Type	Number	Frequency (%)
A→T/T→A	1	1.05
A→C/T→G	2	2.1
A→G/T→C	0	0
G→A/C→T	24	25.3
G→C/C→G	4	4.2
G→T/C→A	2	2.1
Insertions	20
Deletions	42	44.2
Total	95	100
A→N/T→N	3	3.16
G→N/C→N	30	31.6
Transitions	24	25.3
Transversions	9	9.5

A total of 95 white colonies were completely sequenced in order to reveal the actual types and frequency of mutations.