Teaching Meiosis and Mitosis

When teaching mitosis and meiosis at Key Stage 4 I find it effective to demonstrate using large cut-outs of cells and a small number of chromosomes made from pipe cleaners with beads representing the genes. The beads can be swapped from one chromosome to the other to show crossing over and the pipe cleaners twisted in the middle to represent two sister chromatids joined at the centromere.




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