Transcript Mitosis vs. Meiosis

Mitosis vs. Meiosis
Lab book pages 125-126
03/06/2013
LT: I will be able to explain the stages of meiosis and how they
are different from mitosis.
Know: What do you think happens to chromosomes
during meiosis?
http://www.sligotoday.ie/images/1302971643.jpg
Mitosis: Review
• Occurs when a single
cell divides, and two
identical daughter
cells are made
– Daughter cells
contain the same
number of
chromosomes and
genetic information
as the parent cell
http://www.ba-education.com/dna/mitosis.jpg
Meiosis: FYI
• Occurs when a cell
divides to create
reproductive cells
– Nucleus divides to
create four nuclei
http://www.bio.georgiasouthern.edu/biohome/harvey/lect/images/meiosis.gif
How are Mitosis and Meiosis
Different?
Mitosis
• Produces body cells
– Cells used for growth and
repair
• Produces 2 daughter cells
– Daughter cells are identical
– Daughters have 2 sets of
chromosomes
Meiosis
• Produces sex cells
– Cells used for sexual
reproduction
• Produces 4 daughter cells
– Daughter cells have ½ of their
genes from parent cell
– Daughter cells can get only 1
part of each chromosome
How are Mitosis and Meiosis the
same?
• Have cell division
– A parent cell divides,
and creates daughter
cells
• Have phases of cell
division
• Involve chromosome
replication
http://www.google.com/imgres?q=cell+division+phas
es&um=1&hl=en&client
Evidence
• Draw Meiosis– textbook page 105. Summarize
captions.