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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Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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