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