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Standard XII
Biology
Genetic Drift
Give any two ...
Question
Give any two factors responsible for genetic variation.
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Solution
The change in gene and gene frequencies is called genetic variation. Genetic variation in populations is caused by the following factors.
Gene mutations - Changes in the chemical make up of a gene is called gene mutations or point mutations.
Gene flow - Transfer of genes between populations that differ genetically from one another is called gene flow.
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