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ITBS Level 13 Grade 7 Science 5
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Avg score: 66% Most missed: “How would this experiment have gone differently had the student looked at bacter…”

Use the information below and your knowledge of science to answer questions below.

Using a microscope, a student looks at a cross-section of a plant root and counts the number of cells she sees in each phase of mitosis. She gets the following results:


ITBS Level 13 Grade 7 Science 5
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3 Questions

1. Which phase does each cell seem to spend the most time in?
2. How would this experiment have gone differently had the student looked at bacterial cells instead of plant root cells?
3. In which phase are all the chromosomes lined up in a plane?