In Hardy-Weinberg formula P2 represents frequency of_____________?

Correct answer: C. Homozygous dominant individual

  • A. Recessive allele
  • B. Dominant allele
  • C. Homozygous dominant individual
  • D. Homozygous recessive individual

Explanation

In the Hardy-Weinberg expression p2 + 2pq + q2 = 1, p is the frequency of the dominant allele, so p2 represents individuals carrying two dominant alleles, or homozygous dominant individuals. Students may choose the dominant allele itself because p denotes its frequency, but p2 denotes the genotype frequency produced by two dominant alleles.

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