Moderate

Which principle helps in determining the ratio of a phenotype in a population?

Correct answer: C. Hardy-Weinberg's principle

  • A. Darwin's natural selection
  • B. Lamarck's theory
  • C. Hardy-Weinberg's principle
  • D. None of these options are correct

Explanation

Option A: Darwin suggested that populations of individual species become better adapted to their environments through natural selection, thus this is not the correct option.Option B: Lamarck suggested that physical changes in organisms during their lifetime could be transmitted to their offsprings, this is not the correct option.Option C: This states that allele in a population will remain constant from generation to generation in the absence of other evolutionary influences, this is the correct option.Option D: As Option C is correct this can't be the correct option.

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About Evolution

Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.

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