View All Pages

Study Guide: Mitosis

To-Do Date: Mar 6 at 2:30pm

Cartoonlosing-friends-in-mitosis_1_orig.png

In the cartoon, one cell is trying to find his friend (Gus) but a big crowd of cells all identify as Gus. Given what you learned about mitosis, why would all of the cells have the same identity? What part of these cells are the same? How did they get produced? 

Learning Objectives 

By the end of the lab you should be able to: 

  • Explain the role and importance of mitosis for multicellular organisms 
    • distinguish between when this is used for creating identical daughter cells for growth or asexual reproduction
    • explain how they pass along genetic information from one cell to the next. 
  • Understand the stages of the cell cycle and the purpose and importance of each stage
    • Mitosis: Prophase, Metaphase, Anaphase, Telophase
    •  Cytokinesis 
    • Interphase: G1, S-phase and G2
  • Examine a microscope slide and identify the different stages of mitosis and the cell cycle
    • Animal cells
    • Plant cells
  • Track the flow of genetic information from one cell to its daughter cell. 

Study Guide Questions

We will be learning about  mitosis in lab, where we can use the microscope to examine cells undergoing mitosis. Since we will be learning about genetics in both lecture and lab, we will have a combined exam that will take place in the lab period on Tuesday, October 25th.  There will be a microscopes set up for you to examine, as well as regular exam questions. 

 

1. Draw and label each stage of mitosis. Make sure to include the following in your drawing

      • unduplicated chromosomes and duplicated chromosomes.
      • centromeres, sister chromatids, homologous pairs, and chromosomes 
      • Mitotic spindle apparatus 
      • identify the the ploidy of the starting cell in mitosis and the ploidy of the ending cell 

2. Draw and label the chromosomes for cells that have N= 3 that are  

      • Diploid (2n)
      • Haploid (1n) 

3.  Explain how mitosis is an example of the flow of  information. Make sure to include an explanation of  what information is stored in chromosomes, and how it is passed from one cell to the next and for what purpose. 

      • Why does DNA replication have to happen before mitosis? (during S of interphase)?
      • How does mitosis lead to identical cells? (each daughter cell gets what in terms of chromosomes?) 
      • What's are the differences between eukaryotic cell division (specifically mitosis) and prokaryotic cell division (specifically binary fission

Class PowerPoints.