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modes of reproduction - Coggle Diagram

- - - - jsut a region (thinnest part)
- - - - extra e.g. -> starfish
    - - extra e.g. potato
  - - - fusion of gametes not required-> save energy
      - all beneficial qualities are passed onto the offspring
      - only one parent is required
      - method of producing offspring is faster than sexual reproduction
    - - there is no genetic variation in offspring-> species are not well-adapted to changes in the environment
        
        if the parent does not have the resistance to a particular disease, the offspring too would not have the resistance to the disease
        
        the whole population could be wiped out by a particular disease as a result
  - - - identical chromosome numbers
      - exact genetic information
      - diploid set of chromosomes
- - - - P MAT
        
        metaphase (easist to identify all chromosones in one line at the equator)
        
        chromosomes line up at the equator odf the spindle
        
        the centromere of each chromosome is attacked to a spindle fibre
        
        anaphase
        
        each centomere splits
        
        the spindle fibres pull the chromatids apart to opposite poles of the cell
        
        once the chromatids are separated, they are called daughter chromosomes
        
        prophase
        
        chromatin threads condense, coil and shorten to become chromosones
        
        each chromosome consist of two sister chromatids (identicle) attached at the centromere
        
        now visible under microscope
        
        when 4 chromosomes split at the centromere, there will be 8 chromosones
        
        relophase