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Cell Division

Published on Nov 23, 2015

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PRESENTATION OUTLINE

CELL DIVISION

AUDREY ROBERTS

Binary Fission is when a cell divides into two or more parts. An organism that undergoes this process is bacteria. This process happens every 20 minutes.

Mitosis is the process of nuclear division.

Interphase is where cells spend most of it's time in the cell cycle. Stage G1 is the period if cell growth and where it increases in number of cell organelles. Stage S is where DNA replicates. Stage G2 is where the preparation for Mitosis is, it also confuse to grow.

PROPHASE

  • Chromosomes become visable
  • Centrioles move to opposite poles
  • Spindle forms
  • Nucleolus becomes imvisable
  • Nuclear membrane disappears

During metaphase, chromosomes move to the equator(middle).

During anaphase, chromosomes move apart.

TELOPHASE

  • Chromosome arrive at poles
  • Spindle disappears, Centrioles replicate
  • Nucleur membrane reappears
  • Nucleolus becomes visible
  • Chromosomes become chromatin(invisable)

During cytokinesis, cleavage furrows.

Meiosis is the process in which gametes are formed. It's used to make everyone different.

Haploids have one copy of its DNA, while diploid has 2 copies.

The production of gametes is the purpose of meiosis. Gametes are an organisms reproduction cells.

The purpose of mitosis is to increase the number of cells. The purpose of meiosis is to produce gametes. They are different ways of cell division and reproduction.