If we want to know the percentage of particular genotypes within an actual population, assuming ...

If we want to know the percentage of particular genotypes within an actual population, assuming
  complete dominance and two alleles, the one measurement we have to actually make is of the
  frequency of the
 
  a. heterozygous phenotypes.
  b. heterozygous genotypes.
  c. homozygous dominant genotypes.
  d. dominant phenotypes.
  e. recessive phenotypes.

Question 2

Which of the following statements is not true?
 
  a. The size of the average family has been increasing in the United States since 1950.
 b. The size of the average family dwelling in the United States has been increasing since 1950.
 c. Larger homes require more resources and energy to build and maintain.
 d. The lifestyle of people in industrialized nations affects biodiversity.