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3B Scientific DNA/chromosome staining kit. Prepare own squashed stained slide and be able to identify the phases of plant mitosis and chromosomal development. With the DNA/chromosome staining kit, students will be able to prepare, stain and mount slides using specifically prepared onion root tips. Kit contains enough material for 15 groups. Teachers manual and student guide copymasters are included. Kit includes: (1) vial preserved root tips, (1) bottle of 6M hydrochloric acid of 25-milliliters capacity, (2) bottles of toluidine blue 1 percent solution of 25-milliliter capacity, (1) box of microscope slides, (1) box of coverslips, (30) aluminium dishes, (30) forceps.