TABLE 2.

Repression of Δ2-3-induced sn^w mutability by telomeric P elements and H(hsp/P) transgenes

	Experiment 1			Experiment 2
TP element or transgenea	No. of vials	No. of flies	Mutation rate ± SEb	No. of vials	No. of flies	Mutation rate ± SEb
None	48	1155	0.557 ± 0.021	49	1576	0.471 ± 0.019
TP5-N	38	534	0.061 ± 0.015	47	1826	0.054 ± 0.011
TP6-N	43	1194	0.313 ± 0.032	50	1748	0.287 ± 0.023
SP-A	48	1016	0.576 ± 0.026	50	1667	0.553 ± 0.018
SP-B	49	1056	0.591 ± 0.021	45	1023	0.463 ± 0.028
KP-3	50	1273	0.218 ± 0.018	49	1925	0.227 ± 0.017
KP-11	49	1526	0.351 ± 0.020	49	1367	0.381 ± 0.019
KP-14	46	1096	0.272 ± 0.024	42	1052	0.291 ± 0.022
TP5-A	49	1033	0.445 ± 0.023
TP5-B	50	1268	0.439 ± 0.024
TP5-C	48	961	0.424 ± 0.023
TP5-D	48	1047	0.540 ± 0.025
TP6-A				47	1468	0.443 ± 0.022
TP6-B				49	1531	0.450 ± 0.023
TP6-C				50	1863	0.421 ± 0.019

^aTP5-N and TP6-N are the native telomeric P elements on the X chromosome; other entries are H(hsp/P) transgenes containing the indicated P element.

^bUnweighted mean mutation rate ± standard error.