A negative stain is repelled by the negatively charged bacterial cell and allows the observer to see a clear picture of size, shape, and aggregation of the cell. True False Solution The statement is false. Negative stain means during the observation of bacteria or other microbes under microscope, the background of them stained, not the microbes themselves. This allows the microbes visible without staining them. If microbes stain, then it called as Positive stain..