In the hands-on activity, Mitosis, Meiosis and Fertilization, students use model chromosomes to simulate the processes of mitosis, meiosis and fertilization, and they answer questions designed to promote understanding of these processes. To demonstrate the principle that genes are transmitted from parents to offspring through the processes of meiosis and fertilization, students follow two alleles of a gene through gametes to zygotes as they model meiosis and fertilization. Students also learn how a mistake in meiosis can result in Down Syndrome.
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See also a complete list of activities:
Hands-on Activities for Teaching Biology to High School and Middle School Students