Research Question: Does the study of cells through the microscope agree with the times rate of cell division in the root tip of Allium cepa, the common onion. Data Collection & Processing: Table 1: Different Field Observing and Determining each Phase in Mitosis

Fields Interphase Prophase Metaphase Anaphase Telophase

1 11 - - 1 - 2 20 1 - 1 -

3 16 - - 1 -

4 13 - - - - 5 12 2 1 - -

6 14 1 - - - 7 20 1 - 1 1

8 24 4 - - 1 9 19 3 - - -

10 20 - - - -

Table 1:The table illustrates the number of phases determined in the onion cell. As shown majority cells are in Interphase and the shortest is Metaphase. Interphase: 785 minutes ~ 883 minutes Average: (785 min + 883 min)/2 = 834 minutes Prophase: 60 minutes ~ 120 minutes Average: (60 min + 120 min)/2 = 90 minutes Metaphase: 5 minutes ~ 105minutes Average: (5 min + 15 min) /2 = 10 minutes Anaphase: 2 minutes ~ 10 minutes Average: (2 min + 10 min) / 2 = 6 minutes Telophase: 10 minutes ~ 30 minutes Average: (10 min + 30 min) /2 = 20 minutes Average time to complete the cell cycle is 960 minutes I:P:M:A:T (Observation) = I:P:M:A:T (Expected) 169:12:1:4:2 = 834:90:10:6:20 Interphase Prophase Metaphase Anaphase Telophase

= 0.197 + 1.795 + 0.4687 + 6.792 + 0.937 = 10. 1897

Conclusion