Question
What do you understand by gene mutation?Explain.
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Answer
Genetic variation arises by mutation : The mutation may be defined as "alternation in the arrangement, or amount of genetic material of a cell or a virus." They may be classified as either point mutations involuing minor changes in the genetic material or macromutation (e.g., deletion) involuing larger section of chromosomes. Example of a mutation : Sickle cell anemia.
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