Page 32 - Just for Middle School Life Science Mini Catalog

BIOTECHNOLOGYMIDDLE SCHOOL LIFE SCIENCEBiotechnology for Young Scientists—Student Laboratory KitStudents extract and isolate “spooled” DNA from fruit using electrophoresis. Visible bands appear as the DNA fragments run through the “molecular maze” in an electric field. Includes dried fruit and solutions for isolating DNA as well as agarose, buffer and electrophoresis dyes. Purified fish DNA added to the isolated fruit DNA ensures that DNA bands will always be visible. Super Value Kit is complete for 30 student groups.2 options available at flinnsci.com$83.55–$164.15Dyeing for Forensics— Super Value Laboratory KitUse gel electrophoresis to analyze six simu-lated DNA samples to determine which family gets the mementos and money. The simulation uses DNA fingerprinting with Y chromosome and mitochondrial DNA relat-edness testing used on old or degraded DNA. Colorful bands are visible after 15–20 minutes. Requires electrophoresis apparatus and power supply.FB2023 I $66.35DNA Staining—Student Laboratory KitStudents harvest onion root tips, treat them with chemicals, macerate the tissue, stain the tissue and prepare their own microscope slides. Microscopic examination reveals the DNA and mitotic patterns in the meri-stematic cells. The straightforward, classic squash-and-stain procedure helps the abstract notion of DNA become a reality.FB0481 I $40.80A Process to Dye for: Gel Electrophoresis—Student Laboratory KitIntroduce students to basic gel electropho-resis principles and operation with colorful dyes. Students learn how biological mole-cules separate during electrophoresis by comparing the charge, size and molecular formulas of five dyes. Students observe direction and measure the rate of dye migration and use the results to identify an unknown mixture of dyes. Using dyes elimi-nates the need to stain samples. 2 options available at flinnsci.com$56.90–$120.75DNA and Electrophoresis Simulation—Super Value KitA fun kinesthetic way to teach DNA struc-ture and restriction enzymes. Every student in your class becomes a coded nucleotide, and together the entire class will form a giant DNA molecule. Students personally experience the antiparallel and coding structure of DNA. Once built, the giant DNA molecule is cut by a restriction enzyme. The challenge for each DNA fragment team is to run an obstacle course simulating gel electrophoresis.FB1228 I $56.55Electrophoresis Buffer—Demonstration KitDramatically demonstrate the chemical activity at the anode and cathode of an electrophoresis apparatus. The color changes at the two ends of the electropho-resis tank are very striking when no buffer is used. When a buffer solution is added during the follow-up run, the color will not change! Students quickly understand why a buffer solution is used in an electrophoresis apparatus. Enough materials are provided for seven demonstrations.FB1581 I $25.95