Question

Which of the following are assumptions for Hardy-Weinberg equilibrium? O All organisms within the population are genetically similar a Infinitely large population O Migration is occurring O Mutations are occurring in the population Random mating Question 3 Suppose a population of 1000 people is in H-w equilibrium, if 84% of this population can taste PTC, how many are heterozygotes, considering that ability to taste PTC is inherited as a dominan allele? O 600 0 400 580 ○ 480 6 MacBook Air

Answer 1

1. As per hardy-weinberg equilibrium all the individuals in a population are in a non evolving state. The conditions for this principle is that there will be no mutation, no migration, no natural selection and the population would be infinitely large and will perform random mating.

Option 2 and 5

2. Genotype of tasters = PP or Pp

Genotype of non tasters = pp

Number of tasters = PP + Pp = 84% of 1000 = 840

Number of non tasters = pp = 1000 - 840 = 160

As per HWE, p + q = 1

Allelic frequency of p = √160/√1000 = 12.64/31.62 = 0.399

Allelic frequency of P = 1 - 0.399 = 0.601

Frequency of PP = (0.601)(0.601) = 0.361 or 361 in a population of 1000.

So, frequency of heterozygotes will be 840 - 361 = 479 (approximately 480)

Last option

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