MUTATION

• Mutation is a change which occur spontaneously in chromosome or gene.


• There are two types of mutation; chromosome mutation and gene mutation


• Chromosome mutation refer to change in stucture or number of chromosome.
  
• The consequences of chromosome mutation includes Down's suyndrome, Klinefelter's syndrome and Turner's syndrome.

Down's syndrome

Turner's syndrome

• Gene mutations due to chemical changes in individual genes.
  
• The consequences of gene mutation are colour-blindness, haemophilia, albinism and thalasseamia. Albino
  
  
  Thalassaemia