Name: _______________________________________________________________ Hour: _____ Number: _____
Mitosis & Meiosis Review
Mitosis or Meiosis?
1.
What is the total number of chromosomes you have in each body cell before mitosis? ___________
2. What is the total number of chromosomes in each cell after mitosis? _________________
3. How many cells are made from the one starting cell during mitosis? ______________
4. How many chromosomes are present in each of the following HUMAN cells?
a.
Stomach cells ______________
b. Egg cells ______________
c.
d. sperm cells ______________
e. heart muscle cells ______________
Liver cells ______________
5. How is each of the cells below made? Mitosis or Meiosis?
a.
Stomach cells ______________
b. Egg cells ______________
c.
d. sperm cells ______________
e. heart muscle cells ______________
Liver cells ______________
6. What is the total number of chromosomes in a HUMAN cell before meiosis?
7. How many cells are made from one parent cell during meiosis? ____________________
8. What is the total number of chromosomes in each new cell after meiosis? _________
9. Meiosis is sometimes called REDUCTION division. What is being reduced? ___________________
Mitosis and Meiosis in plants and animals.
Organism
Chromosome Number
Alligator
32
Dog
78
Fly
12
Lettuce
18
Pigeon
80
Chromosome number
after mitosis
Chromosome number
after meiosis
1
Name: _______________________________________________________________ Hour: _____ Number: _____
For each sentence below, put an “X” in the box(es) if the statement in TRUE.
STATEMENT
MEIOSIS
MITOSIS
Two new cells are made from each original cell.
Four new cells are made from each original cell.
DNA replication occurs.
Doubled chromosomes pair to form TETRADS.
Cells with the same chromosome number as the original cell are made.
Cells with a smaller chromosome number (1/2) than the original cell are made.
Makes egg or sperm cells.
Makes body cells.
Makes diploid daughter cells.
Makes haploid daughter cells.
For each description below, put an “X” in the box(es) if it occurs during Meiosis I or Mitosis
or both. Also include the name of the phase described (ex. Prophase I)
STATEMENT
MEIOSIS
MITOSIS
NAME OF
PHASE
Homologous chromosomes pair up and form a tetrad
Spindle fibers move homologous chromosomes to
opposite sides
Sister chromatids line up along equator, not in
homologous pairs
Nuclear membrane reforms, cytoplasm divides, 2
daughter cells formed
Nucleus disappears, chromatin coils into
chromosomes, spindle fibers begin to form
Homologous chromosomes line up alone equator
Cytoplasm divides, 2 daughter cells are formed
Chromosomes are replicated to form 2 sister
chromatids.
Spindle fibers move homologous chromosomes to
the opposite poles
Nuclear membrane reforms, cytoplasm divides, 4
daughter cells formed
Spindle fibers move chromatids to the opposite
poles
Crossing-over occurs
2