指出下列二倍体基因型①能否产生β一半乳糖苷酶?②β一半乳糖苷酶的合成是诱导型还是组成型?③如果以乳糖作为唯一碳源是否能生长? (a) i+Z-Y-／i-Z+Y- (b) i+Z+Y+／i+ Oc Z- Y+ (c)i+ Z- Y+／Oc Z+ Y+ (d) i+Z+Y-／i-Z-y+ (e)i-Z+Y-／i- Z+ Y+ (f)i-Z+Y+／i+OcZ-Y+ (g) i-P-z+／i-Z- (h)i+ OcZ- Y+／i+Z+ Y- (i)i+P-OcZ-Y-／i-Z+Y- (j)i+ P- OcZ+ Y-／i-P+O+Z+Y-