1. Cell Division/Mitosis and Meiosis
BIO.7.M Compare and contrast the processes and purposes of mitosis and meiosis
BIO.7.N Identify and explain the effect of mutations on daughter cells
Mitosis – Eukaryotic nuclear division
Meiosis – The process of nuclear division that reduces the number of chromosomes in a cell by
half
Interphase – A period of cell growth and development that precedes eukaryotic cell nuclear
division
Prophase – The first stage of mitosis and meiosis, characterized by condendation of
chromosomes
Metaphase – The second phase of mitosis, during which all the chromosomes move to the celll’s
equator
Anaphase – A phase of mitosis and meiosis in which the chromosomes separate
Telophase – The final stage of mitosis during which a nuclear membrane forms around each set
of new chromosomes
Cytokinesis – The division of the cytoplasm of one cell into two new cells
Centrioles – A structure that appears during mitosis in animal cells
Centromere – A region of the chromosome where the two sister chromatids are held together and
which is the site of spindle fibers during mitosis
Spindle Fibers – One of the microtubules that extend across a dividing eukaryotic cell; assists in
the movement of chromosomes
Nondisjunction – The failure of homologous chromosomes to separate during meiosis or the
failure of sister chromatids to separate during mitosis
Gametes – A reproductive cell
Ideas:
Give students pictures/Have students draw pictures of the phases of Mitosis and Meiosis and use
the appropriate vocabulary to label the pictures and describe each phase

2. Fill in a Ven Diagram with each statment for mitosis and meiosis with the following statements:
- The resulting cells contain one chromosome of each pair
- Each new cell contains the same kind and number of chromosomes as the parent cell
- Spindle fibers form in the cell
- Haploid cells are formed
- The nuclear membrane disappears
- This stage is important because it prevents increases in chromosome number generations.
- Decreases genetic variation in daughter cells
- Is important in the production of gametes
Closure - ?