TABLE 1.

Sestd1^−/−;Dact1^−/− combination mutants show the same phenotypes as either Sestd1^−/− or Dact1^−/− single mutants

An intercross was made between Sestd1^−/+;Dact1^−/+ mice. Genotype and phenotype (tail length and genital tubercle (GT)) of each newborn pup were determined.

	Genotype
	WT	Dact1−/+	Sestd1−/+	Sestd1−/+ Dact1−/+	Dact1−/−	Sestd1−/−	Sestd1−/+ Dact1−/−	Sestd1−/− Dact1−/+	Sestd1−/− Dact1−/−
Number	5	3	4	7	3	3	8	3	4
Phenotype	Normal	Normal	Normal	Normal	Short tail, no GT	Short tail, no GT	Short tail, no GT	Short tail, no GT	Short tail, no GT