Transcript Mitosis Meiosis - mrsoto

Goal: Review Mitosis and Meiosis
New Words: meiosis, meiotic cell division, mitosis, mitotic cell division
Do Now:
List 3 things you have learned already about Mitosis and Meiosis
Goal: Understand Meiotic Cell Division
New Words: meiosis, meiotic cell division
Mitosis and Meiosis Exam
Friday, September 28th 2012
• Cell Cycle
• Mitosis
• Meiosis
Resources: www.mrsoto2012.wikispaces.com
• Click on “3. Cell Division”
Goal: Review Mitosis and Meiosis
New Words: meiosis, meiotic cell division, mitosis, mitotic cell division
Number of cell
divisions?
Mitosis
One
Meiosis
Two
Exchange of genetic
material?
NO
Yes
Crossing over
Number of functioning cell
produced from original?
Two body cells
Four Sex Cells
How is the genetic material
of final cells produced?
Function of cells
produced?
Identical
To parent cell
growth
and repair
Different
To parent cell
Sexual
reproduction
Number of cell
divisions?
Exchange of genetic
material?
Mitosis
One
NO
Meiosis
Two
Yes
Crossing over
Number of functioning cell
produced from original?
Two Cells
Four Cells
How is the genetic material
of final cells produced?
Identical
To parent cell
Different
To parent cell
Function of cells
produced?
Growth & repair
Sexual
reproduction
1. Write one or more paragraphs that compare the two methods of cell division, mitosis and
meiosis. Your answer must include at least:
1) one similarity between the two methods
2) one difference between the two methods
3) one example of a cell that divides by mitosis
4) one example of a cell that divides by meiosis
1. Mitosis and meiosis produce new daughter cells.
2. Mitosis produces 2 daughter cells from the original, meiosis produces 4 daughter
cells.
In Mitosis, daughter cells have the same number of chromosomes as the parent cell,
but in Meiosis daughter cells have one half of the number of chromosomes of the
parent cell.
3. Body cells divide by Mitosis
4. Sex cells divide by Meiosis
Goal: Review Mitosis and Meiosis
New Words: meiosis, meiotic cell division, mitosis, mitotic cell division
Number of cell
divisions?
Exchange of genetic
material?
Mitosis
One
NO
Meiosis
Two
Yes
Crossing over
Number of functioning cell
produced from original?
Two Cells
Four Cells
How is the genetic material
of final cells produced?
Identical
To parent cell
Different
To parent cell
Function of cells
produced?
Growth & repair
Sexual
reproduction
1) Meiosis occurs in the development of sex cells. Mitosis occurs in most other
cells. Identify two additional differences between these processes.
•There is an exchange of genetic material (crossing over) in meiosis, whereas there is no
exchange of such material in mitosis
•Mitosis produces 2 daughter cells from the original, meiosis produces 4 daughter cells.
•In Mitosis, daughter cells have the same number of chromosomes as the parent cell, but in
Meiosis daughter cells have one half of the number of chromosomes of the parent cell.
•In mitosis daughter cells contain the same genetic material as the parent cell, in meiosis
daughter cells have different genetic material as the original cell
•In mitosis daughter cells are body cells, in mitosis daughter cells are sex cells (gametes)