TABLE 1.

Genotypes of live born progeny obtained by crossing heterozygous Fliih mutant mice

Targeted allelea	No. of each genotype per allele			Total no. of offspring
	+/+	+/−	−/−
1.4A	11	36 (3.3:1)b	0	47
1.5F	9	17 (1.9:1)	0	26
2.1A	15	32 (2.1:1)	0	47
Total	35	85 (2.4:1)	0	120

^aLines are derived from targeted ES cell clones 1.4A, 1.5F, and 2.1A.

^bRatio of +/− to +/+ is given in parentheses in this column.