1. Research questions and objectives: First, researchers need to be clear about their research questions and objectives. This is the basis of experimental design and the core of the whole research.

2. Literature research: Before designing the experiment, researchers need to conduct in-depth research on the literature in related fields, understand the existing research results and methods, and find out the blank points of the research.

3. Determine the experimental method: According to the research questions and objectives, researchers need to choose the appropriate experimental method. This may include animal experiments, cell experiments and molecular biology experiments.

4. Design the experimental scheme: After determining the experimental method, researchers need to design the experimental scheme in detail, including experimental materials, equipment, operation steps, observation indicators, etc.

5. Pre-experiment: Before the formal experiment, researchers usually conduct pre-experiments to verify the feasibility and effectiveness of the experimental design.

6. Data analysis: After the experiment, researchers need to analyze the experimental data and get the research results.

7. Discussion on the results: Finally, researchers need to discuss the experimental results, explain the significance of the results, compare with the existing research, and put forward their own views and suggestions.

In the whole process, researchers need to strictly abide by scientific research ethics to ensure the safety and effectiveness of the experiment. At the same time, they need to keep an open mind and be alert to possible problems and challenges.