Table 1. T-Red phenotype is autosomal recessive.

Parents	Generation	n	Memory phenotype	%
G3.mutant × G3.mutant	G4	28	28	100
B6 × G3.mutant	F1	21	0	0
	F2	106	21	19.8

T-cell phenotypes in a mutant mouse strain were inherited as a simple autosomal recessive trait in the progeny. Peripheral blood of mice between 6 and 12 weeks old was examined for CD44 levels of CD8 T cells.