Mitosis

Description

AS LEVEL Biology Mind Map on Mitosis, created by Katie Kenney on 02/01/2015.
Katie Kenney
Mind Map by Katie Kenney, updated more than 1 year ago
Katie Kenney
Created by Katie Kenney almost 10 years ago
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Resource summary

Mitosis
  1. Interphase
    1. organelles replicate
      1. DNA is unravelled and replicated
        1. ATP content is increased
        2. Prophase
          1. nuclear envelope breaks down
            1. chromosomes lie free in cytoplasm
            2. chromosomes condense
              1. centrioles move to opposite ends of cell forming the spindle
              2. Metaphase
                1. chromosomes line up along the middle of the cell
                  1. they attach to the spindle by their centromere
                  2. Anaphase
                    1. centromeres divide separating each pair of sister chromatids
                      1. spindles contract pulling chromatids to opposite ends of cell
                      2. Telophase
                        1. chromatids uncoil to become chromosomes again
                          1. nuclear envlope forms around each group of chromosomes forming two nuclei
                            1. Cytokinesis- cytoplasm divides creating two genetically identical daughter cells
                            2. Function
                              1. leads to growth of an organism
                                1. repairs tissues and replaces dead cells
                                  1. provides asexual reproduction
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