Predict whether functional b-galactosidase (product of LacZ gene) will be produced by the following E. coli strains under the conditions noted. The diploid genotypes represent partial diploid F' (lac) strains. Use to indicate that the enzyme is synthesized at greater than basal levels, and 0 to indicate that the enzyme is not synthesized. Lactose absent Lactose present
(a) I+ P+ O+ Z+
(b) I- P+ O+ Z+
(c) I+ P+ OC Z+
(d) I- P+ OC Z+
(e) I- P+ OC Z-
(f) I+ P+ O+ Z-
(g) I+ P+ OC Z- / I+ P+ O+ Z+
(h) I+ P+ O+ Z- / I+ P+ OC Z+
(i) I+ P+ O+ Z- / I- P+ O+ Z+
(j) I+ P+ O+ Z+ / I- P+ O+ Z-
(k) I+ P+ OC Z- / I- P+ O+ Z+
(l) I+ P+ O+ Z- / I- P+ OC Z+
(m) I- P+ O+ Z- / I- P+ OC Z+
(n) I- P+ OC Z- / I- P+ O+ Z+