The purpose of this activity is to model the formation of homologous chromosomes and the crossing over realized in meiosis I cell division. The model established through the activities conducted will allow students to visualize homologous chromosomes and the formation of crossing over among them. The model will help students to understand how homologous chromosomes occur and how crossing over is realized between homologous chromosomes whose chromatids are not sisters. The developed model is found to be an effective tool in teaching crossing over.

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