Table 5.

Synthetic lethality between bni1 and bck1 mutations^a

Genotype	Viable	Inviableb
bni1 bck1	0	42
bni1 BCK1	51	1
BNI1 bck1	52	0
BNI1 BCK1	40	2

^aBTY1 (bni1::HIS3-1) was crossed with KFY3 (bck1::LEU2) and the resulting diploid was subjected to tetrad analysis. 

^bGenotypes of the inviable segregants were inferred from those of the viable segregants.