Question $1$

If a cell has the partial diploid genotype

$\frac{\text{l}\text{a}\text{c}\text{l}+\text{l}\text{a}\text{c}\text{O}\text{c}\text{l}\text{a}\text{c}\text{Z}+\text{l}\text{a}\text{c}\text{Y}\text{t}}{\text{l}\text{a}\text{c}\text{l}-\text{l}\text{a}\text{c}\text{O}\text{c}\text{l}\text{a}\text{c}\text{Z}+\text{l}\text{a}\text{c}\text{Y}-}$

how will the operon genes be regulated by lactose in the environment?

wild$-$type induction pattern

uninducible expression

expression at $50\%$ of wild type levels in the presence of lactose

constitutive expression