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प्रश्न
Industrial melanism in the peppered moth is significant because it demonstrates:
विकल्प
A selection of resistant genotypes
Balanced polymorphism
Rapid natural selection in microorganisms
Environmental selection acting on colour variation
MCQ
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उत्तर
Industrial melanism demonstrates environmental selection acting on colour variation. The other options correspond to different examples: DDT resistance (selection of resistant genotypes), sickle-cell anaemia (balanced polymorphism), and antibiotic resistance (rapid natural selection in microorganisms).
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