meiosis and mitosis comparision. mitosis: if a cell wants to make a duplicate of itself, it first...
TRANSCRIPT
Meiosis and Mitosis comparision
Mitosis:• If a cell wants to make a
duplicate of itself, it first must copy its DNA (part of a chromosome).
• The copies then must be separated & sorted into two sides of the cell.
• The cell then splits in two. Part of each parent is carried to the two new cells.
• Results in cells such as internal organs, skin, bones, blood, etc.
Mitosis
Mitosis
Meiosis:• it first must copy its DNA (part of a
chromosome).
• Results in reproductive cells (sperm, eggs, etc).
• Part of each parent is carried to the four new cells.
• Meiosis has evolved to solve a problem.
• The problem is this: Genetic Diversity of organisms – that is, they combine their genes together (creating genetic diversity).
• Why would this be a problem?
Meiosis
Meiosis
This may you remember these terms:
• MITosis takes the cell and Makes It Two (diploid)
• Meiosis has to do with sex cells (gametes)
• From the cell’s point of view:– mITosis results in Identical Twins (diploid)– mEioSis results in Egg and Sperm (haploid)
Clyde Freeman Herreid – Dept. of Biological Sciences: Buffalo State Univ. of New York
Mitosis: Meiosis:
Each resulting cell still has chromosomes from mom & dad
Comparision
Create a table and put the differences and similarities of Mitosis and Meiosis in it:
Mitosis Both Meiosis
1) Produces diploid cells 2) Produces haploid cells
1) Divide cells
References
• Yvonne Norman: Senior – Portland State University
• February 2009