Final answer:
Nissl stains do not identify myelin and axons. They are used to identify the cell bodies of neurons by binding to RNA-rich granules.
Step-by-step explanation:
Nissl stains, also known as Nissl bodies, are used to identify the cell bodies of neurons, not the myelin and axons. Nissl stains bind to a type of RNA-rich granules that are abundant in the cell bodies of neurons. This staining technique allows researchers to visualize and study the structure and organization of neurons.