Final answer:
The expression of the genes lacZ+ and lacY+ in the given bacterial cell is constitutive, meaning they are continuously transcribed and translated.
Step-by-step explanation:
The expression of the genes lacZ+ and lacY+ in the given bacterial cell with the genotype lacI- lacZ+ lacY-/F' (lacI+ lacZ- lacY+) is constitutive.
Constitutive gene expression means that the genes are transcribed and translated continuously, providing a constant level of protein products in the cell. In this case, lacZ+ and lacY+ are always being expressed regardless of the presence of lactose or other environmental factors.
Unlike the lac operon, which is repressible and inducible depending on the availability of lactose, the genes lacZ+ and lacY+ in this bacterial cell are constitutively expressed.