Advanced Placement / Biology

Mitosis

After learning the technique for growing roots and preparing root tip squashes for microscope analysis, students observe the root tips for evidence of mitosis. They compare the number of cells in mitosis to the number of cells in interphase. They apply the chi-square “test of independence” to compare their results with provided data.

Following the initial investigation, students can move to independent inquiry and test a particular treatment to see if it affects the rate of mitosis in roots. Chi-square analysis can be applied to evaluate the significance of the results.

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Standards Correlations

IB Topics	AP Topics
1.6	3