Genetic Diversity & Natural Selection (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does genetic diversity refer to?
What does genetic diversity refer to?
Number of different alleles in a population
How do mutations increase genetic diversity?
How do mutations increase genetic diversity?
They create entirely new alleles
What is gene flow?
What is gene flow?
When individuals from different populations interbreed
What happens during a genetic bottleneck?
What happens during a genetic bottleneck?
Population size reduces dramatically
What is the founder effect?
What is the founder effect?
A small group establishes a new colony
Why do advantageous alleles increase through natural selection?
Why do advantageous alleles increase through natural selection?
Individuals with them have more offspring
Which is an example of a behavioural adaptation?
Which is an example of a behavioural adaptation?
Possums playing dead when threatened
Which is an example of a physiological adaptation?
Which is an example of a physiological adaptation?
Bears slowing metabolism during hibernation
Which is an example of an anatomical adaptation?
Which is an example of an anatomical adaptation?
Whales having thick blubber
What happens to genetic diversity when a population recovers from a bottleneck?
What happens to genetic diversity when a population recovers from a bottleneck?
It remains much lower than before