RAD9 and RAD24 have different effects on the growth of yku70Δ and cdc13-1 colonies. Single G1-arrested cells were spread on YEPD (ade) plates and photographed after 20-h growth. The yeast strains were (a) DLY640, (b) DLY1412, (c) DLY1271, (d) DLY1364, (e) DLY640, (f) DLY1230, (g) DLY1255, and (h) DLY1257.