If you look at the karyotypes of person a and person b and discover that they look alike, what can you infer is the same about these two people?

They belong to the same species

Explanation:

A karyotype is an image of the chromosomes of a cell usually taken by an atomic microscope in a cell arrested in the prophase stage of mitosis –because the chromatin is well condensed.

It is difficult to discern the difference between individuals of the same species using karyotype unless in exceptions of chromosomal disorders like Klinefelter's syndrome and Turners syndrome, and etcetera.

However different species will most likely differ in the number of chromosomes, the chromosomal sizes and their arms lengths.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.