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Chemical Attraction - C-Fern Sperm Chemotaxis Accessory Kit

	Now Available Chemical Attraction: C-Fern Sperm Chemotaxis Lab
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	C-Fern Educational Materials are available from Carolina Biological Supply Company. For information please contact Carolina Biological at http://www.carolina.com or call: 800-334-5551 fax 800-222-7112.
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An amazing experiment that tests the ability of sperm to detect and swim to a chemical signal (positive chemotaxis). Using sperm from 12 – 18 day-old C-Fern gametophyte cultures, students document the responses to a series of test solutions, including pairs of isomers that elicit distinctly different responses. Instructions are also included to demonstrate the activity of the natural chemoattractant that allows sperm to locate receptive archegonia and eggs. All manipulations and observations can be made using a stereomicroscope at 12X or higher and transmitted (bottom) illumination. This is an accessory Kit that can be used with all other C-Fern Kits or with any separately established C-Fern cultures. For separate cultures, the new him1 (highly male) strain is recommended. Includes materials for 6 groups of students. Experiment time is 0.5 – 1 hr., not including culture time.