The DNA fragments separated on an agarose gel can be visualised after staining with

Options

A. Bromophenol blue
B. Acetocarmine
C. Aniline blue
D. Ethidium bromide

Explanation

To solve the question regarding which staining agent is used to visualize DNA fragments separated on an agarose gel, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Context**: The question asks about the visualization of DNA fragments after they have been separated on an agarose gel. Agarose gel electrophoresis is a common technique used to separate DNA fragments based on their size.

2. **Identifying Staining Agents**: The options given are:
- a. Bromophenol blue
...