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DNA Staining

kit #170

This highly engaging Lab-Aid is based on the Feulgen reaction where DNA in plant cells are stained purple for easy viewing. Students macerate, stain, and mount specially grown root tips (provided in the kit). Then, they locate and diagram DNA in the cells. Finally, the students are asked to observe and draw the various stages of cell division. This enables the students to develop a better understanding of the hereditary material in plant chromosomes. All aspects of the lab activity are performed by the individual student. MICROSCOPES ARE NEEDED.



  • Macerate, stain and mount selected root tips
  • Locate and diagram DNA in cells
  • Observe and draw various stages of cell division

Content List in DNA Staining is as follows:

Quantity Description
1 Teacher’s Guide with MSDS
30 Student Worksheets and Guides
30 Microscope slides
30 Cover slips
30 Plastic treating dishes
30 Transfer brushes
1 Specially selected root tips, Vial
1 Dilute Acetic Acid, Drop control bottle
2 Hydrochloric Acid, 1 M, Drop control bottle
2 Leucofuchsin Dye, Drop control bottle
2 Sodium Bisulfite Solution, Drop control bottle
Recommended number of students
maximum 32 at the same time
Recommended number of groups
maximum 16 at the same time

To complete this kit requires one ~50-minute class period.

Title Item # Price Quantity
DNA Staining 170 $164.75
DNA Staining REFRESH-A-KIT 170-RC $144.15
Additional Root Tips 170-1EA $65.00