Mitosis and Meiosis

Learning goals

By the end of this unit, you should be able to describe:

• the steps in mitosis and meiosis, how the chromosomes line up in metaphase, when homologous chromosomes separate and when sister chromatids separate

• differences between mitosis and meiosis

• how mitosis results in two identical daughter cells

• how meiosis results in 4 genetically different gametes

You should be able to trace the inheritance of

• multiple genes on the same chromosome when there is no crossing over between them

• multiple genes on the same chromosome when there is crossing over between them

• genes on different chromosomes

Reading: Mitosis on Khan Academy

Read this if you want a review of mitosis. It is very clearly written without excess detail

Activity: Mitosis simulation

Watch the above videos on mitosis, review the Khan academy tutorial. Then come up with a way to simulate mitosis using playdoh, socks, or other household objects. You will take pictures of each stage and explain what the chromosomes are doing. You are welcome to work on this with other students and check each others work (in person or on zoom), but you should submit your own simulation.

Activity: Meiosis simulation

Watch the above videos on meiosis, review the Khan academy tutorial. Then come up with a way to simulate meiosis using playdoh, socks, or other household objects. You will take pictures of each stage and explain what the chromosomes are doing. You are welcome to work on this with other students and check each others work (in person or on zoom), but you should submit your own simulation.