How do variations arise in organisms? ‘‘Variation is useful for the survival of species.’’ Justify this statement with the help of an example.
CBSE FOREIGN - SET 3 2017
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- Variations may arise due to small inaccuracies in DNA copying during reproduction; as a result of sexual reproduction where genetic materials from two different organisms combine to form a new organism.
- During adverse conditions, some variations may give survival advantage to the organism.
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