Final answer:
A typical fluorescent microscope with a resolution limit of 200nm will not be able to resolve two ribosomes that are 500nm apart. They would appear as a single merged image.
Step-by-step explanation:
The resolution limit of a typical fluorescent microscope is 200nm, meaning that it can distinguish between two objects that are at least 200nm apart. In this case, the two ribosomes are 500nm apart, which is greater than the resolution limit. Therefore, when labeled with a fluorescent antibody and viewed under a typical fluorescent microscope, you would see the two ribosomes as a single merged image instead of two separate objects. The microscope would not be able to resolve the individual ribosomes.