Why must a specimen be thin to be viewed under the microscope and why are they sometimes stained? To see them better. Chemical sometimes used to make  ...

The stain usually colors one part of the specimen, but not another part. By creating that color contrast it becomes easier to view parts of the subject. Sometimes a ...

A stained histologic specimen, sandwiched between a glass microscope ... Stains and dyes are frequently used in biology and medicine to highlight .... Sometimes heat fixation is used to kill, adhere, and alter the specimen so it accepts stains.