🧬 AP Biology Protein Expression & Phenotype Presentation Lactase, Lactose Intolerance & Gene Expression (Central Dogma, Benedict’s Test, Data Analysis, Inquiry, FRQ Practice) Make gene expression clear, visual, and meaningful with this engaging, student-friendly AP Biology presentation that connects DNA → protein → phenotype through a real-world example: lactose intolerance. This ready-to-use, plug-and-play lesson walks students step-by-step through how the lactase enzyme (protein) affects the