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According to Darwin resistance to pesticides has a genetic basis due to presence of certain alleles. In the presence of pesticides, the insects develop the allele for resistance while those without the allele for resistance are selected by nature.

1. True
2. False
3. Cannot be determined
4. None of the above

Correct answer: False

Solution

The statement is false because resistance alleles must already exist in the population before pesticide exposure. Pesticides do not cause insects to develop the allele; they simply favor survival and reproduction of insects that already carry it.

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