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Hardy-Weinberg Equation is:

Correct answer: A. p² + 2pq + q2= 1

  • A. p² + 2pq + q2= 1
  • B. p + 2pq + q = 1
  • C. p + 2pq + q - 0
  • D. 2p + q² = 1
  • E. 2p + 2q = 1

Explanation

The Hardy-Weinberg equation, p² + 2pq + q2= 1, is used to predict the genetic variation of a population at equilibrium. In this equation, p represents the frequency of one allele, and q represents the frequency of the other allele in a diploid organism. The term p² represents the frequency of the homozygous genotype for the first allele, q² represents the frequency of the homozygous genotype for the second allele, and 2pq represents the frequency of the heterozygous genotype. This equation is a cornerstone of population genetics, illustrating how allele and genotype frequencies remain constant from generation to generation in the absence of evolutionary influences.Options B, C, D, and E are incorrect because they do not correctly represent the relationship between allele and genotype frequencies as outlined by the Hardy-Weinberg principle.

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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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