This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
Light microscope resolution to visualise chromosomes 
Select and explain. 
A. 500 kb, B. 5 mb, C. 50 mb, D. 5 kb
D: 5 kb
Answer: D: 5 kb 
Explanation: Standard light microscopes have a lateral resolution limit of about 0.5micrometers for routine analysis In light microscopy, a beam of light is focused through a microscope using glass lenses to produce an enlarged image of the specimen