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Predation on white moths increased due to pollution darkening tree trunks, favoring melanic moths' survival through camouflage.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Origin of Life - Theories Miller Urey Experiment
Industrial melanism in peppered moth Biston betularia shows directional selection favoring dark morph in soot-polluted forests due to improved camouflage from bird predation. Kettlewell's experiments measured selection coefficients. With clean air acts, light morph recovered. This classic example demonstrates natural selection acting on existing variation in response to human-induced environmental change. Therefore it exemplifies Directional selection driving rapid adaptive shift. This concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.
Ref: Futuyma, Evolution, 4th ed., Chapter 11: Natural Selection.
Industrial melanism in peppered moth Biston betularia shows directional selection favoring dark morph in soot-polluted forests due to improved camouflage from bird predation. Kettlewell's experiments measured selection coefficients. With clean air acts, light morph recovered. This classic example demonstrates natural selection acting on existing variation in response to human-induced environmental change. Therefore it exemplifies Biston betularia driving rapid adaptive shift. This concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.
Ref: Campbell Biology, 12th ed., Chapter 22: Descent with Modification.
Industrial melanism in peppered moth Biston betularia shows directional selection favoring dark morph in soot-polluted forests due to improved camouflage from bird predation. Kettlewell's experiments measured selection coefficients. With clean air acts, light morph recovered. This classic example demonstrates natural selection acting on existing variation in response to human-induced environmental change. Therefore it exemplifies Peppered moth driving rapid adaptive shift. This concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.
Ref: Campbell Biology, 12th ed., Chapter 22: Descent with Modification.
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