An instrument that magnifies slight differences in the refractive index of cell structures is called a (n) __________ microscope.

An instrument that magnifies slight differences in the refractive index of cell structures is called a (n) __________ microscope.

An instrument that magnifies slight differences in the refractive index of cell structures is called a (n) __________ microscope. 










A. phase-contrast
B. electron
C. fluorescence
D. densitometric










Answer: A