MUTATION

Definition: mutation is the spontaneous change in the structure of the amount of DNA  of an organism resulting in the creation of a new character or trait. Example of diseases or character causes as a result of mutation  Down’s syndrome, haemophilia etc.

TYPES OF MUTATION

There are two types of mutation

• Chromosome mutation
• Gene mutation

Chromosome mutation is a mutation resulting from change in the amount or arrangement of mutation

Gene mutation  is the change in the structure of DNA examples of gene mutation include  Albinism, sickle cell, anaemia.

                                    CAUSES OF MUTATION

 It can be caused by alpha and beta rays , X-rays chemicals like TOBACCO, caffeine etc.