1. Ethidium bromide is commonly used as a fluorescent dye in molecular biology research.

2. Scientists use ethidium bromide to visualize DNA bands on agarose gels during electrophoresis.

3. It is important to handle ethidium bromide with care as it is a mutagen and can be harmful if not used properly.

4. The presence of ethidium bromide in the gel allows researchers to accurately measure the size of DNA fragments.

5. When working with ethidium bromide, it is recommended to wear gloves and work in a well-ventilated area.

6. Ethidium bromide staining is a common technique used in the field of genetics to study DNA structure and function.

将它们翻译成中文：

1. 乙啶溴化物常用作分子生物学研究中的荧光染料。

2. 科学家们在电泳过程中使用乙啶溴化物来在琼脂糖凝胶上可视化DNA条带。

3. 需要小心处理乙啶溴化物，因为它是一种诱变剂，如果使用不当可能会有害。

4. 凝胶中存在乙啶溴化物允许研究人员准确测量DNA片段的大小。

5. 在使用乙啶溴化物时，建议戴手套并在通风良好的地方工作。

6. 乙啶溴化物染色是遗传学领域常用的技术，用于研究DNA的结构和功能。