

This results in an extra chromosome (n + 1) in two of the gametes and a missing chromosome (n - 1) in two of the gametes. If nondisjunction occurs in meiosis I, the homologous pair of chromosomes remain bound. Nondisjunction may occur during meiosis I or meiosis II. \): Nondisjunction in Meiosis: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, resulting in an abnormal chromosome number. Simulate mitosis and meiosis in an imaginary animal called a Frimpanzee ( doc).Do the “ Modeling Meiosis” Lab using modeling clay of different colors to represent the chromosomes.Another good “ Stages of Mitosis” lab using onion root tip slides.Have students do this “Observing Mitosis Lab” ( pdf) using prepared slides of onion ( Allium) root tips.Watch Frank Gregorio’s very dramatic YouTube video of “ Cell Division and the Cell Cycle.”.Show Michael Clark’s “Mitosis” PowerPoint presentation.Scott Greenhalgh from the NSTA Listserve contributed this “Meiosis Web Lesson” ( doc) that uses this Meiosis Animation.You will need to save the file and open it in PowerPoint to have the music play throughout.


If your school has this program, creating your own maps is a good way to introduce vocabulary. It includes information about meiosis and fertilization with questions. Mitosis Flipbook 1 Mitosis Flipbook 2 students are not required. Using the Inspiration software, Sue Hinojoza has created a concept map about “Chromosomes” ( pdf). Different Types Of Mitosis And Meiosis Quiz ProProfs Quiz.Try this simple “Modeling Crossing Over” ( doc) activity.“ Cell and Mitosis” crossword puzzle and answers.Try this “ Cell Division Jeopardy” game.

(You can save the song by right-clicking on the link and selecting “Save Target As.”) This song was written and performed by Ramon Nieves, a former student in one of Mrs Rebello’s science classes at Bristol-Plymouth Regional Technical School. Play the “ Mitosis Rap” song for your students.Using plastic forks, knives, and spoons to demonstrate Mitosis: Chromosome Replication & Division.The meiosis images (which are in 5 separate files on the “flip book” site) are consolidated here. Have students make mitosis and meiosis flip books.
