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WorksheetsHardy-Weinberg Practice Problems
Total questions: 20
Worksheet time: 1hrs 1mins
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)
In the Hardy-Weinberg Equation, q is the frequency of what?
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
In the Hardy-Weinberg Equation, p2 is the frequency of what?
The recessive allele
the dominant allele
the recessive genotype
the dominant genotype
p + q always equals 1. Which answer choice best explains this?
1 individual could have a dominant or a recessive allele.
The population is in Hardy-Weinberg equilibrium. The 1 indicates that the population has not evolved.
In terms of frequency, 1 is the highest possible number you can have.
In terms of frequency, 1 is the same as 100%. All alleles in a population added up give you 100% of the alleles.
0.7 + q = 1 What's the missing value?
(a)
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
What should you try to start with?
p
q
q2
p2
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
If you started with q2 what do you find next?
p
q
q2
p2
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive.
Now that you have q, what should you solve for next?
p
q
q2
p2
A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive. Calculate the following:
1. The frequencies of each allele.
2. The frequencies of each genotype.
3. How many foxes are of the heterozygous genotype?
If the frequency of recessive allele is 0.2, what is the frequency of the homozygous recessive individuals?
0.04
0.16
0.4
0.8
The allele frequency of p=.20 What is the frequency of the heterozygous genotype?
.80
.04
.32
.64
The allele frequency of p=.20 What is the frequency of the recessive genotype?
.80
.04
.32
.64
0.09
0.42
0.49
0.21
The gene pool for a population of 10 individuals contains 4 recessive alleles and 16 dominant alleles (20 alleles total). What is the value for p (dominant allele frequency)?
(a)
Which values can be plugged into the equation? p + q = 1
0.6 and 0.16
0.6 and 0.4
0.4 and 0.16
0.48 and 0.36
0.49 + 2pq + 0.09 =1 Find the value for 2pq.
(a)
If 0.49 + 0.42 + 0.09 = 1 (p2 + 2pq + q2 = 1), what is the value for p?
0.09
0.07
0.7
0.9
p2 + 2pq + 0.81 = 1 Find the missing values (p2 and 2pq)
