Table I. Recombination frequencies as determined by SCE events at minor satellite repeats in the indicated genotypes.

	Recombination frequency per chromosome	Mean kb per minor satellite	Minor satellite DNA per mouse chromosome	C-SCE per kb
Dnmt wt p13	0.149	600	1,200	1.24 × 10−4
Dnmt1−/− p13	0.164	600	1,200	1.36 × 10−4
Dnmt3a,3b−/−p8	0.243	600	1,200	2.02 × 10−4
Dnmt3a,3b−/−p24	0.287	600	1,200	2.39 × 10−4

p, passage number.