What type of microscope would be most appropriate for evaluating similarities between a test bullet and one recovered from a crime scene?

a) compound
b) comparison
c) stereoscope
d) scanning electron

B) comparison

Comparison microscope is a microscope which is used for the comparison of the suspected specimen bullet obtained from the scene of crime with the one which is obtained after test fire. It exhibit two sample stages and the field of view of two bullets is compelled into one view so that the similarities and differences among the samples can be noted upon by direct comparison. The samples can be rotated to 360° to allow the comparison of surface feature.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).