Biology
![Positive Staining](../../../_files/images/module-pics/module-feature-pics/positive-staining-thumbnail.jpg)
Positive Staining (10th)
Just like microbiologists, students will stain cells to study and characterize them. Positive staining is characterized by the use of a positively-charged basic dye, such as methylene blue. In this experiment, students will be introduced to positive staining by working with onion cells.