Name a stain which is commonly used for staining chromosomes.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a specific stain that is commonly used for staining chromosomes. This indicates that we need to identify a dye that is effective in highlighting chromosomes during microscopic examination.

2. **Identifying Common Stains**: There are several stains used in biology for various purposes, but for staining chromosomes specifically, we need to focus on those that are known for their affinity to DNA.

3. **Recognizing Acetocarmine**: One of the most well-known stains for chromosomes is Acetocarmine. It is a DNA-specific stain that is particularly effective for staining chromosomes during mitosis.

...