Hardy-Weinberg Equilibrium

Which of these is a condition that must be met for Hardy-Weinberg equilibrium?

• extremely small population size

• no natural selection

• gene flow

• nonrandom mating

If the frequency of dominant phenotype is 0.36, what is the frequency of the dominant allele?

• 0.2

• 0.48

• 0.6

• 0.8

p + q = 1. If p represents the dominant allele frequency, what would q represent?

• the homozygous dominant genotype frequency

• the recessive allele frequency

• the total amount of alleles in the population

• a measure of fitness in the population

In the Hardy-Weinberg Equation, p is the frequency of what? (a)  

• The recessive allele 
• the dominant allele
• the recessive genotype
• the dominant genotype

Which Hardy-Weinberg equation represents the genotype frequencies in a population?

• p + q = 1
• p2 + 2pq + q2 = 1
• p2 + pq2 + q2 = 1
• p + 2pq + q3 = 1

A population of 150 individuals has an allele frequency of 0.3 for the dominant allele (B) and a frequency of 0.7 for the recessive allele (b). Use the Hardy-Weinberg equation to determine the frequency of the genotype (bb).

• 0.09
• 0.42
• 0.49
• 0.21

Determine the expected numbers of organisms with genotype BB if the frequencies are as follows in a population with a total size of 150: BB=0.16, Bb=0.48, and bb=0.36. 

• 24
• 72
• 54
• 150

If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would you predict to have the dominant phenotype?

• 70%

• 30%

• 51%

• 42%

In a population of humans, the frequency of no dimples is 0.36. If having no dimples is the recessive phenotype, what is the frequency of the recessive allele?

• 0.6

• 0.36

• 0.64

• 0.18

A mutation is defined as:

• A change in the cell's structure

• Anything that changes in an embryo

• Any change in the physical features of a human

• A change in the DNA sequence