Please enable JavaScript.

Coggle requires JavaScript to display documents.

cell division (mitosis (gamete formation, forms 4 haploid cells, farmer…

- - - - chromosomes aline at the equator and are the shortest and the thickest at this stage
    - - the chromosomes divide into two and start moving towards the poles
    - - longest phase, chromatin fibres condense to form chromosomes which become distinct with two chromatids and centrioles reach the opposite sides and form the spindle fibres, nucleolus and nuclear membrane disappear and the cell organelles also disappear and reform at telophase
    - - nucleus is reconstituted and the nuclear membrane and nucleolus is reformed
- - - - spindle formation
    - - chiasmata disappears and forms two homologous chromosomes
    - - pachytene
        
        crossing over
      - diplotene
        
        synaptonemal complex is dissolved and chiasmata formation takes place
      - zygotene
        
        formation of the syneptonemal complex and attachment of homologous chromosomes
      - diakinesis
        
        terminalization and nucleus disappears
      - leptotene
        
        chromosomes are formed
    - - chromosomes elongate and the nucleoplasm and nuclear membrane disappears