Visualize the process of mitosis in both plants and animals using onion root tips and prepared slides of white fish blastula. Students then compare differences between plant and animal mitosis. Meiosis is demonstrated via the crossing over and recombination that occurs from a cross between a wild type Sordaria fimicola and a mutant variety with a tan spore coat color. Background information includes an illustrated key to both mitosis and meiosis as well as a complete explanation of the differences between the two processes. Neo/Sci.