Pagpag

• Cell division - It's the process by which a cell divides to form two new

  cells
• Binary fission - Divides forming two new identical cells
• Mitosis - Cell or organism growth

  Replacement or repair of damaged cells
• Meiosis - formation of sex cells, or gametes
• DNA Replication - DNA is copied resulting into two identical chromosomes
• Chromosome Segregation - Chromosomes separate and move towards ends (poles) of cell
• Cytokinesis (Separation) - Cytoplasm divides forming two (2) cells
• Eukaryotic cell division - Cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent cell
• Eukaryotic cell division cont. - Cell division that results in four daughter cells
• Cell cycle

  The sequence of events from the time a cell first arises as a result of cell division

  until the time when that cell itself divides.

  Arise - Divide

  Cell after division begins a new cycle
• Interphase

  period of growth and DNA

  replication between cell divisions
• G1 Phase

  Cell increases in size
• S Phase

  Replication of DNA - Two sister strands of DNA called chromatids are produced
• G2 Phase

  Organelles double

  New cytoplasm forms

  All other structures needed for mitosis form
• Early prophase

  Chromatids condense becoming chromosomes

   Nucleolus disappears 

  Centrioles separate and start moving to opposite ends of the cell

  Spindle begins to form
• Late prophase

  The nuclear membrane fragments and the microtubules invade the nuclear area

  Centrioles have moved to the opposite poles 

  The spindle is completely formed 
• Metaphase

  The chromosomes are aligned

  at the metaphase plate 

  Centrioles move at polar ends and projects spindle fibers to connect each chromosome
• Anaphase

  The paired chromosomes (sister chromatids) separate 

  Separated chromatids move to opposite pole

  Partial division of cytoplasm begins 
• Telophase

  Chromosomes are at the poles 

  Chromosomes uncoil-turn chromatin

  Nuclear envelops reforms

  Spindle fiber disappear 
• Cytokinesis 

  Occurs at the end of mitosis