Preparation of Chromosome Squashes
Biology or Life Science Lab for Grades 9-12
In this lab, students will grow onion roots, and use the cells from the root tip to make a chromosome squash slide. Cells in the root tip are rapidly dividing by mitosis in order to make the root grow in length.
• To learn the technique of making chromosome squashes.
• To observe chromosomes in recently living cells.
• To determine if the rate of cell division correlates with the growth of the plant.
PLEASE NOTE: This lab is also sold in a bundled package which can be viewed here: Mitosis and Meiosis Complete Unit Plan Bundle
Your download will include Title, Purpose, Introduction, Materials, Safety Precautions, Procedure, Analysis Questions, Student Data Pages, Answers to all Questions, and Teacher Preparation Notes.
Materials Needed Include:
Onion sets, Toothpicks, Plastic cups, Razor blades, 70 % isopropyl alcohol, Test tubes, Rubber stoppers, Microscope slides, Cover slips, Microscopes, Syracuse dishes, Hydrochloric acid, 95% Ethyl alcohol, Carnoy's solution, Stopwatch, Aceto - orcein stain, Forceps
NOTE: This lab requires solutions that are potentially dangerous and must be handled with care.
Related products include:
Mitosis and Meiosis: A Complete Unit Plan Bundle
Mitosis (and Meiosis!) Chat Lab Stations
Mitosis and Meiosis Powerpoint and Notes
Biology Buzz Words: Cell Division
Mitosis, Meiosis, Cell Division - Set of 3 Homework Assignments
Lab: Effect of Environment on Gene Expression
Test: DNA, RNA, Protein Synthesis
Worksheet: DNA and RNA
Lab: Determining the Traits of a Mystery Organism Through Protein Synthesis
DNA Quiz / Review / Worksheet
DNA Jeopardy Review Game
Lab: Mitosis in Plant and Animal Cells
Mitosis and Cell Division Powerpoint Jeopardy Review Game
Meiosis Jeopardy REview Game
Mitosis and Meiosis Unit Test
Mitosis and Meiosis Simulation Lab with Pop Beads
Test: DNA and Replication
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