Students investigate the essential question, How does the structure of DNA shape the proteins that give specialized cells their jobs?, by tracing how changes in DNA influence protein structure and cell function in real biological cases. They work in teams to analyze models, genetic data, and case studies connected to health, traits, or inherited conditions, then construct evidence-based explanations for how DNA directs protein production in specialized cells. Across the project, students set goals, use feedback, and revise their thinking while collaborating to solve complex problems and communicate their findings to an authentic audience.

Students will explain, using evidence, how the sequence and structure of DNA direct protein synthesis and how proteins enable specialized cells to perform essential functions. They will investigate the question, “How does the structure of DNA shape the proteins that give specialized cells their jobs?” by modeling transcription and translation, analyzing mutation scenarios, and connecting changes in DNA to cell function in authentic case studies. Students will collaborate to design and revise a product that communicates their explanation clearly to an audience, using feedback, reflection, and shared decision-making to strengthen both scientific reasoning and communication. Throughout the project, students will apply critical thinking to evaluate multiple explanations, monitor their own progress, and build accurate, standards-aligned content expertise.

Students create a DNA-to-protein evidence notebook that includes models, annotated gene-to-trait explanations, lab data, and weekly reflections showing how feedback shaped their thinking. In teams, they produce a case-study investigation on how a change in DNA can alter protein structure and affect the function of a specialized cell, using physical or digital models, data visualizations, and cited scientific evidence. They also develop a public-facing product such as an infographic, short video, or podcast that answers the question, “How does the structure of DNA shape the proteins that give specialized cells their jobs?” The culminating product is a team presentation or science expo exhibit for peers, families, or community guests that communicates their findings clearly and responds to audience questions.

Begin with a “mystery patient” case in which teams examine short profiles of people with different genetic conditions or traits that affect specialized cells, then sort evidence cards linking DNA changes, protein structure, and cell function. Follow with a hands-on simulation where students use coded DNA sequences to build paper or bead protein models and compare how a single mutation can change the final structure and job of the protein. Ask students to generate initial claims answering, “How does the structure of DNA shape the proteins that give specialized cells their jobs?” and post questions they want to investigate over the next four weeks. Close with a brief team protocol to set collaboration roles, identify what they already know, and choose one case or phenomenon they most want to explore.

Host a “Cell Jobs and Protein Stories” science showcase where teams present an interactive model, infographic, or short explainer that answers the question, “How does the structure of DNA shape the proteins that give specialized cells their jobs?” Invite biology teachers, families, younger students, and local health or science professionals to rotate through presentations and ask questions about how DNA changes can affect protein structure and cell function. Include a public feedback protocol so students practice clear communication, defend their evidence-based explanations, and reflect on how collaboration and revision strengthened their final work. End with a gallery walk and student reflection display that highlights key scientific learning, problem-solving choices, and next steps.