What is Heredity and Mutation
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Hereditary mutation: A gene change that occurs in a germ cell (an egg or a sperm) and is then incorporated into every cell in the developing body of the new organism. Hereditary mutations play a role in cancer, as, for example, in the eye tumor retinoblastoma and Wilms' tumor of the kidney.
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The passing of chracters from parents to offsprings is Hereditary and heredity is effected through transmission of genes from parents to progeny during reproduction.
It is a permanent change in the nucleotide sequence of the genome of an organism. Mutation results from damage of DNA which is not repaired or alteration may occur in chromosome structure or number by the process of replication or insertion or deletion in the structure of DNA.