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CGP EDU Academic Team
Published on: August 13, 2026
The directional natural selection refers to the
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Directional selection occurs when a single phenotype is favoured, causing the allele frequency to continuously shift in one direction. Example-The frequency of melanic form of the moth increased because their darker colouration provided camouflage against the sooty tree. They had a higher survival rate in habitats affected by air pollution.
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