If you have a design a microarray experiment on gene expression. The hypothesis is that eating broccoli affects gene expressions like cell growth,...

If you have a design a microarray experiment on gene expression. The hypothesis is that eating broccoli affects gene expressions like cell growth, cell signaling, and DNA reparing. Identifing the exact crucial gene involved in the biological reponse would help to understand how it helps cancer prevention. Theoretically, how should I design an experiment using microarray to accomplish the goal?