Mutation (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What shape does the graph show when plotting frequencies of a polygenic trait like human height?
What shape does the graph show when plotting frequencies of a polygenic trait like human height?
Bell-shaped normal distribution curve
Which type of mutation is most common among those that persist in populations over time?
Which type of mutation is most common among those that persist in populations over time?
Neutral or nearly neutral mutations
What is allele frequency?
What is allele frequency?
Measure of how often an allele occurs
Which factor is the primary driving force for evolution according to Darwin?
Which factor is the primary driving force for evolution according to Darwin?
Natural selection
What causes changes in allele frequency through sexual selection?
What causes changes in allele frequency through sexual selection?
Non-random mating success
In which type of population does genetic drift have a greater effect?
In which type of population does genetic drift have a greater effect?
Smaller populations
How does immigration affect allele frequency in a population?
How does immigration affect allele frequency in a population?
Brings different alleles into population
What is the bottleneck effect?
What is the bottleneck effect?
Natural disaster reduces population size
What percentage of DNA sequences are similar between all humans?
What percentage of DNA sequences are similar between all humans?
Why are neutral mutations important for evolution?
Why are neutral mutations important for evolution?
They serve as evolutionary backup