Table 1.

Role of SegF in exclusion of T2 allele of gene 56

Phages	Exp. no.	Input WTa	Progeny WTa
T2L × T4am56	1	0.71	0.03
	2	0.53	0.00
	3	0.48	0.01
T2L × T4am56Δ69	1	0.79	0.17
	2	0.54	0.20
	3	0.51	0.22

Crosses were performed as described in Material and Methods. The host used for the coinfections was B40 supF str^r (Sup⁺). 

^aFraction with wild-type marker (in gene 56) from T2 is indicated.