Table II.

Flight Ability Is Impaired by the D-series Suppressors and this Phenotype Is Not Rescued by an Additional Copy of the Mhc Gene

Mhc genotype		Number tested		Direction of flight
				Up		Horizontal		Down		Not at all
+/+		100		87		3		7		3
+/+/+		119		86		8		4		2
D1/+		60		70		15		10		5
D1/+/+		111		82		8		5		5
D41/+		57		32		53		5		10
D41/+/+		120		37		34		8		21
D45/+		90		67		20		3		10
D45/+/+		93		53		22		15		10
D62/+		72		4		12		42		42
D62/+/+		177		4		20		34		42
Mhc5/+		142		14		44		18		24
Mhc5/+/+		167		17		37		23		23