Predict whether-galactosidase will be produced by the followingE. colistrains under the conditions noted. The diploid genotypes represent 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.

Genotype Lactose absent Lactose present

(a)I⁺P⁺O⁺Z⁺

(b)I^-P⁺O⁺Z⁺

(c)I⁺P⁺O^CZ⁺

(d)I^-P⁺O^CZ⁺

(e)I^-P⁺O^CZ^-

(f)I⁺P⁺O⁺Z^-

(g)I⁺P⁺O^CZ^-/ I⁺P⁺O⁺Z⁺

(h)I⁺P⁺O⁺Z^-/ I⁺P⁺O^CZ⁺

(i)I⁺P⁺O⁺Z^-/ I^-P⁺O⁺Z⁺

(j)I⁺P⁺O⁺Z⁺/ I^-P⁺O⁺Z^-

(k)I⁺P⁺O^CZ^-/ I^-P⁺O⁺Z⁺

(l)I⁺P⁺O⁺Z^-/ I^-P⁺O^CZ⁺

(m)I^-P⁺O⁺Z^-/ I^-P⁺O^CZ⁺

(n)I^-P⁺O^CZ^-/ I^-P⁺O⁺Z⁺