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WorksheetsUnderstanding Hardy-Weinberg Equilibrium
Total questions: 7
Worksheet time: 1hrs 21mins
1-15.
Answer the questions below after watching the video
Who were the scientists that developed the concept of Hardy-Weinberg Equilibrium?
Watson and Crick
Hardy and Weinberg
Mendel and Morgan
Darwin and Wallace
What does the term 'gene pool' refer to?
A collection of all genes in a population
A specific set of dominant genes
None of the above
A laboratory technique
What does the Hardy-Weinberg principle assume about the population?
It is evolving
It is not evolving
It is decreasing in size
It is under selective pressure
What does the 'p' value represent in the Hardy-Weinberg equation?
Probability of homozygous recessive genotype
Probability of heterozygous genotype
Frequency of the dominant allele
Frequency of the recessive allele
What is the Hardy-Weinberg equation used to calculate?
Mutation rates
Allele and genotype frequencies in a population
Natural selection
Genetic drift
What is the purpose of calculating allele frequencies in population genetics?
To predict evolutionary trends
To understand genetic diseases
To calculate genetic variation within a population
All of the above
If p + q = 1 in a population, and p is 0.7, what is q?
1.0
0.4
0.3
0.7
In the context of Hardy-Weinberg, what does a 'recessive' trait imply?
It requires two copies of the allele to be expressed
It cannot be calculated
It is less common in the population
It is always deleterious
If 16% of a population is unable to taste a certain chemical due to a recessive allele, what is the frequency of the recessive allele (q)?
0.8
0.4
0.6
0.16
In a population, if the frequency of the dominant allele (p) is 0.6, what is the frequency of the recessive allele (q)?
0.7
0.4
0.6
0.3
How do you calculate the frequency of heterozygous individuals in a population?
q squared
2pq
p squared
p plus q
What does a q squared value represent in the context of Hardy-Weinberg?
Frequency of the dominant allele
Frequency of heterozygous individuals
Frequency of homozygous dominant individuals
Frequency of homozygous recessive individuals
What is the significance of the Hardy-Weinberg equilibrium in studying genetic disorders?
It helps in understanding the spread of disorders
It predicts the future genetic makeup of populations
All of the above
It assists in calculating carrier probabilities
If the allele frequency of a recessive trait in a town is 20%, what is the percentage of the population that is homozygous for this recessive trait?
4%
80%
20%
40%
What percentage of the population would be heterozygous if p = 0.8 and q = 0.2?
64%
16%
32%
48%
Match the variables with their descriptions
q
p
2pq
p^2
q^2
What does p stand for?
dominant allele
recessive allele
homozygous dominant
homozygous recessive
heterozygous
In a population of sandworms from Dune, 89% of individuals have small eyes (aa) and 11% of the population have large eyes. What is the frequency of "a" in this population? Keep 3 decimal places!
0.890
0.943
0.332
0.057
Keep 2 decimals for your answers!
Let's assume that in a population of newts, producing toxin is a recessive trait, while not producing toxin is dominant.
In this population of newts, 387 (of the 587 total newts) do not produce toxin. What is the frequency of the dominant allele in the population?
Keep 3 decimal places in your answer.
In a population of dragons, wings vary in shape. Some dragons have wings which are pointed, while others have more rounded wings. Pointed wings (W) are dominant to rounded wings (w). In the populations of dragons living in the enchanted forest, 43% have pointed wings.
What is the frequency of the recessive allele in this population? Keep 3 decimal places in your answer.
